A cover assembly and earphone device

Abstract

The utility model provides a lid structure and earphone device relate to field box body structure. The lid structure includes casing, lid and elastic locking mechanism, casing is provided with the opening, the outside of casing has the first outer wall surface around the opening, the lid is used for lid and closes the opening, the inside of lid has the first inner wall surface for the sleeve first outer wall surface, elastic locking mechanism includes spring and locking piece, one end of spring is connected in one of first outer wall surface and first inner wall surface, the other end of locking piece is connected spring, wherein, in the process that lid closes or opens the opening, spring deformation, to make locking piece can butt joint or avoid another of first outer wall surface and first inner wall surface, correspondingly make first inner wall surface and first outer wall surface lock or at least partial separation.

Description

Technical Field

[0001] This utility model belongs to the field of box structure technology, and in particular relates to a cover structure and an earphone device. Background Technology

[0002] The lid and closure structure is a widely used structure in daily life. For example, in boxes, containers and other items, the lid and closure structure plays an important role in protecting the contents and preventing leakage or damage.

[0003] In existing technologies, quick-release designs for the case often rely on push-buttons on both sides of the outer shell to compress springs and separate the movement from the shell. However, this additional button structure can detract from the case's appearance. To address this issue, engineers attempted to place the push-buttons on the bottom, converting the pressing force into a lateral contraction of the spring. However, this design complicates the structure and manufacturing process and inadvertently increases costs. Eliminating the push-buttons and relying solely on clips for fastening makes disassembly difficult due to the hard contact between the clips, and it cannot be guaranteed that repeated disassembly will not damage the clips. Utility Model Content

[0004] In view of this, the present invention provides a cover structure and an earphone device that achieve secure locking and convenient opening without damaging the appearance of the case.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a cover structure, including a housing with an opening; the outer side of the housing has a first outer wall surface surrounding the opening; a cover for covering the opening, the inner side of the cover having a first inner wall surface for fitting the first outer wall surface; and an elastic locking mechanism including a spring and a locking member, one end of the spring being connected to one of the first outer wall surface and the first inner wall surface, and the locking member being connected to the other end of the spring; wherein, during the process of the cover closing or opening the opening, the spring deforms so that the locking member can abut against or avoid the other of the first outer wall surface and the first inner wall surface, correspondingly locking or at least partially separating the first inner wall surface and the first outer wall surface.

[0007] This utility model also provides an earphone device, which includes a cover structure with an internal receiving cavity; an earphone body that can be housed in the receiving cavity; the cover structure includes a shell with an opening; the outer side of the shell has a first outer wall surface surrounding the opening; a cover for covering the opening, the inner side of the cover having a first inner wall surface for fitting the first outer wall surface; and an elastic locking mechanism including a spring and a locking member, one end of the spring being connected to one of the first outer wall surface and the first inner wall surface, and the locking member being connected to the other end of the spring; wherein, during the process of the cover closing or opening the opening, the spring deforms so that the locking member can abut against or avoid the other of the first outer wall surface and the first inner wall surface, correspondingly locking or at least partially separating the first inner wall surface and the first outer wall surface. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0009] Figure 1 A schematic diagram of the overall structure of an embodiment of the cover structure provided by this utility model;

[0010] Figure 2 for Figure 1 Overall sectional view (closed state);

[0011] Figure 3 for Figure 1 Overall sectional view (open);

[0012] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0013] Figure 5 A schematic diagram of the overall structure of another embodiment of the cover structure provided by this utility model;

[0014] Figure 6 for Figure 5 Overall sectional view (closed state);

[0015] Figure 7 for Figure 5 Overall sectional view (open);

[0016] Figure 8 for Figure 7 Enlarged view of point B in the middle.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1 / 1', Shell; 10 / 10', Opening; 11 / 11', First outer wall surface; 111 / 111', Mounting groove; 12 / 12', Second outer wall surface; 13 / 13', Stepped surface; 2 / 2', Cover; 21 / 21', First inner wall surface; 211 / 211', Locking groove; 3, Elastic locking mechanism; 31, Spring; 32, Locking element; 33, Mounting cylinder; 4, Hinge shaft. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] The lid and closure structure is a widely used structure in daily life. For example, in boxes, containers and other items, the lid and closure structure plays an important role in protecting the contents and preventing leakage or damage.

[0023] In existing technologies, quick-release designs for the case often rely on push-buttons on both sides of the outer shell to compress springs and separate the movement from the shell. However, this additional button structure can detract from the case's appearance. To address this issue, engineers attempted to place the push-buttons on the bottom, converting the pressing force into a lateral contraction of the spring. However, this design complicates the structure and manufacturing process and inadvertently increases costs. Eliminating the push-buttons and relying solely on clips for fastening makes disassembly difficult due to the hard contact between the clips, and it cannot be guaranteed that repeated disassembly will not damage the clips.

[0024] In view of this, the present invention provides two lid structures that achieve secure locking and convenient opening without damaging the appearance of the box. These two box structures are suitable for various scenarios, such as protective cases for small electronic devices, earphone storage cases, and everyday household containers. The first lid structure is as follows: Figures 1 to 4 As shown, the second type of cover structure is as follows: Figures 5 to 8 As shown.

[0025] Please see Figure 2 and Figure 6 The box structure includes a shell 1 / 1', a cover 2 / 2', and an elastic locking mechanism 3. The shell 1 / 1' has an opening 10 / 10'; the opening 10 / 10' communicates with the cavity inside the shell 1 / 1', so the outer side of the shell 1 / 1' is the outer side relative to the cavity inside the shell 1 / 1', and the outer side of the shell 1 / 1' has a first outer wall surface 11 / 11' surrounding the opening 10 / 10'. The cover 2 / 2' is used to cover the opening 10 / 10', and the cover 2 / 2' also has a cavity inside, so the inner side of the cover 2 / 2' is the inner side communicating with the cavity inside the cover 2 / 2', and the inner side of the cover 2 / 2' has a first inner wall surface 21 / 21' for fitting the first outer wall surface 11 / 11'.

[0026] Please see Figure 3 and Figure 4 Or, please see Figure 7 and Figure 8 The elastic locking mechanism 3 includes a spring 31 and a locking member 32. One end of the spring 31 is connected to one of the first outer wall surface 11 / 11' and the first inner wall surface 21 / 21', and the locking member 32 is connected to the other end of the spring 31. During the process of the cover 2 / 2' closing or opening the opening 10 / 10', the spring 31 deforms, allowing the locking member 32 to abut against or avoid the other of the first outer wall surface 11 / 11' and the first inner wall surface 21 / 21', correspondingly locking or at least partially separating the first inner wall surface 21 / 21' and the first outer wall surface 11 / 11' (at least partially separating involves two cases. The first case is, as...). Figure 3As shown, the first inner wall surface 21 / 21' is completely separated from the second outer wall surface 12 / 12'; the second case is, as... Figure 7 As shown, although the first inner wall surface 21 / 21' and the second outer wall surface 12 / 12' are connected, the non-connected parts have been separated from each other.

[0027] The elastic locking mechanism 3 is configured in at least two ways. First, the elastic locking mechanism 3 is located on the first outer wall surface 11 / 11' of the housing 1 / 1'; second, the elastic locking mechanism 3 is located on the first inner wall surface 21 / 21' of the cover 2 / 2'. Specific configurations are as follows:

[0028] If the elastic locking mechanism 3 is located on the first outer wall surface 11 / 11' of the housing 1 / 1', one end of the spring 31 is fixed to the first outer wall surface 11 / 11', and the locking member 32 is connected to the first outer wall surface 11 / 11' via the spring 31. In this case, when the cover 2 / 2' closes, the first inner wall surface 21 / 21' contacts the locking member 32 and applies pressure, causing the spring 31 to deform, thus allowing the locking member 32 to smoothly avoid the first inner wall surface 21 / 21' until the cover 2 / 2' is completely closed. At this time, the spring 31 recovers some of its deformation, and the locking member 32 abuts against the first inner wall surface 21 / 21', thereby achieving a firm lock between the first inner wall surface 21 / 21' and the first outer wall surface 11 / 11'.

[0029] If it is necessary to open the cover 2 / 2', simply apply a certain external force to compress the spring 31 again and avoid the first inner wall surface 21 / 21', thus releasing the locking state. On the other hand, if the elastic locking mechanism 3 is provided on the first inner wall surface 21 / 21' of the cover 2 / 2', one end of the spring 31 is fixed to the first inner wall surface 21 / 21', and the locking member 32 is connected to the first inner wall surface 21 / 21' through the spring 31. During the closing process of the cover 2 / 2', the locking member 32 will contact the first outer wall surface 11 / 11' and compress the spring 31. After the cover 2 / 2' is fully closed, the restoring force of the spring 31 causes the locking member 32 to abut against the first outer wall surface 11 / 11', thereby achieving the locking between the first inner wall surface 21 / 21' and the first outer wall surface 11 / 11'. Similarly, when the cover 2 / 2' is opened, the spring 31 is further compressed under the action of external force, and the locking member 32 avoids the first outer wall surface 11 / 11', so that the cover 2 / 2' can be opened smoothly.

[0030] Furthermore, the covering structure includes, but is not limited to, linear motion type, rotation type, and nested type with stepped surface 13 / 13'. These different designs are all based on the same principle, namely, using the deformation of spring 31 to drive the locking member 32 to move, thereby achieving a reliable connection or separation between the first inner wall surface 21 / 21' and the first outer wall surface 11 / 11'.

[0031] The box structure provided in this embodiment of the utility model includes a shell 1 / 1', a cover 2 / 2', and an elastic locking mechanism 3. The shell 1 / 1' is provided with an opening 10 / 10'; the outer side of the shell 1 / 1' has a first outer wall surface 11 / 11' surrounding the opening 10 / 10'; the cover 2 / 2' is used to cover the opening 10 / 10', and the inner side of the cover 2 / 2' has a first inner wall surface 21 / 21' for fitting the first outer wall surface 11 / 11'; the elastic locking mechanism 3 includes a spring 31 and a locking member 32, one end of the spring 31 being connected to the first outer wall surface 11 / 1'. One of the first outer wall surface 11 / 11' and the first inner wall surface 21 / 21' is connected to the other end of the spring 31. During the process of the cover 2 / 2' closing or opening the opening 10 / 10', the spring 31 deforms, allowing the locking member 32 to abut against or avoid the other of the first outer wall surface 11 / 11' and the first inner wall surface 21 / 21', correspondingly locking or at least partially separating the first inner wall surface 21 / 21' and the first outer wall surface 11 / 11'. This embodiment of the invention, through the provision of the elastic locking mechanism 3 on either the first outer wall surface 11 / 11' or the first inner wall surface 21 / 21', achieves a stable connection between the cover 2 / 2' and the shell 1 / 1', while avoiding the aesthetic damage and operational inconvenience caused by traditional push-button or snap-fit ​​structures. Through the elastic deformation of the spring 31, the locking member 32 can abut and avoid the first outer wall surface 11 / 11' or the first inner wall surface 21 / 21' in different states, thereby ensuring that the closing process is both firm and convenient.

[0032] In some embodiments, please refer to Figure 3 and Figure 7 To improve locking stability and add a prompting function, a locking groove 211 / 211' is provided on the first outer wall surface 11 / 11' or the first inner wall surface 21 / 21' for the abutment of the elastic locking mechanism 3. Specifically, if the elastic locking mechanism 3 is located on the first outer wall surface 11 / 11' of the housing 1 / 1', then the locking groove 211 / 211' is located on the first inner wall surface 21 / 21' of the cover 2 / 2'; if the elastic locking mechanism 3 is located on the first inner wall surface 21 / 21' of the cover 2 / 2', then the locking groove 211 / 211' is located on the first outer wall surface 11 / 11' of the housing 1 / 1'.

[0033] In operation, as the cover 2 / 2' gradually approaches the opening 10 / 10' of the housing 1 / 1', the locking element 32 of the elastic locking mechanism 3 first contacts the first outer wall surface 11 / 11' or the first inner wall surface 21 / 21'. As the cover 2 / 2' continues to move, the spring 31 begins to deform, and the locking element 32 gradually contracts inward under pressure until it completely avoids the obstruction of the first outer wall surface 11 / 11' or the first inner wall surface 21 / 21'. At this point, the cover 2 / 2' can be smoothly locked onto the housing 1 / 1'. During the process of the cover 2 / 2' being fully closed, the locking element 32 will extend again under the restoring force of the spring 31 and accurately embed into the corresponding locking groove 211 / 211', thereby achieving a stable locking effect. This design not only improves the ease of operation of the lid-closing structure, but also provides clear tactile or audible feedback, such as a "click" sound or a slight vibration, through the cooperation of the locking grooves 211 / 211' and the locking element 32, allowing the user to clearly perceive that the lid 2 / 2' has been successfully closed. At the same time, due to the limiting effect of the locking grooves 211 / 211' on the locking element 32, the lid 2 / 2' will not easily loosen or fall off due to external force when closed, further enhancing the reliability of the overall structure.

[0034] This embodiment of the utility model improves the stability of locking by setting the locking groove 211 / 211', and allows users to obtain a more intuitive and reliable feedback experience during use.

[0035] In some embodiments, please refer to Figure 3 To enable users to lock and unlock the cover 2 and housing 1 by inserting and removing the cover in a straight line, the extension directions of the first outer wall surface 11 and the first inner wall surface 21 are defined. Specifically, the first outer wall surface 11 and the first inner wall surface 21 extend along a first direction (represented by dashed line a in the figure), so that the cover 2 moves along the first direction to open or close the opening 10. In practical applications, the first direction can be horizontal, vertical, or inclined, depending on the usage scenario and functional requirements of the case. For example, in an earphone storage case, the first direction is usually designed to be the direction of the opening 10 of the case, so that users can quickly open and close the cover 2 while avoiding accidental unlocking of the cover 2 due to misoperation.

[0036] During operation, combine Figure 4When the user pushes the cover 2 along the first direction, the first inner wall surface 21 of the cover 2 and the first outer wall surface 11 of the housing 1 are relatively displaced. During this process, the spring 31 in the elastic locking mechanism 3 is compressed or stretched, and the locking member 32 moves accordingly to avoid or abut against the corresponding wall surface. When the cover 2 is fully closed, the restoring force of the spring 31 causes the locking member 32 to tightly abut against the first outer wall surface 11 or the first inner wall surface 21, thereby achieving a stable locking effect. If it is necessary to open the cover 2, the user only needs to apply an appropriate force along the first direction, the spring 31 deforms again, the locking member 32 moves and avoids the corresponding wall surface, so that the cover 2 can smoothly disengage from the locked state.

[0037] This embodiment of the utility model, by limiting the first direction, enables the cover 2 to move along a straight line, thereby achieving rapid locking and unlocking between the cover 2 and the shell 1, which is ergonomic and improves the user's operating experience.

[0038] In some embodiments, please refer to Figure 3 To better ensure the first outer wall surface 11 and the first inner wall surface 21 lock together, the number of elastic locking mechanisms 3 and the positional relationship between them are limited. Specifically, two elastic locking mechanisms 3 are provided; within the cross-section of the first outer wall surface 11 or the first inner wall surface 21 (which can specifically be a cross-section perpendicular to the first direction), the two elastic locking mechanisms 3 are positioned far apart from each other. That is, the two elastic locking mechanisms 3 are located on opposite sides of the first outer wall surface 11 or the first inner wall surface 21, thereby providing a uniform locking force when the cover 2 is closed. This design can effectively avoid the tilting or jamming of the cover 2 caused by uneven force on one side, further improving the stability and reliability of the cover structure.

[0039] During the operation, combined with Figure 4 When the cover 2 moves along the first direction, the springs 31 in the two elastic locking mechanisms 3 deform synchronously, causing their respective locking elements 32 to move. Since the two locking elements 32 are distributed far apart, they can simultaneously act on different positions of the first outer wall surface 11 and the first inner wall surface 21, forming a multi-point contact locking effect. This multi-point contact mechanism makes the connection between the cover 2 and the housing 1 more secure, and also ensures consistency of action during unlocking, avoiding localized jamming.

[0040] This embodiment of the utility model further enhances the functionality and adaptability of the cover structure by rationally configuring the number and positional relationship of the two elastic locking mechanisms 3, providing users with a more efficient and convenient operating experience.

[0041] In some embodiments, please refer to Figure 7To prevent the cover 2' from being lost, the cover 2' is hinged to the housing 1'. Furthermore, to accommodate the rotation trajectory of the cover 2' and the housing 1' around the hinge axis 4, the first outer wall surface 11' and the first inner wall surface 21' are arc-shaped. Specifically, the first outer wall surface 11' and the first inner wall surface 21' are both arc surfaces, and the first inner wall surface 21' and the first outer wall surface 11' are hinged together by the hinge axis 4, allowing the cover 2' to rotate around the hinge axis 4 to open or close the opening 10'.

[0042] When users perform specific operations, they should combine Figure 8 With just a gentle rotation of the cover 2', the cover 2' will move along the arc-shaped trajectory (the arc-shaped trajectory is in...). Figure 7 (Represented by dashed line b) Smoothly opens or closes. When the cover 2' rotates to the closed position, the restoring force of the spring 31 causes the locking member 32 to tightly abut against the first outer wall surface 11' or the first inner wall surface 21', thereby ensuring a stable connection between the cover 2' and the housing 1'. When it is necessary to open the cover 2', the user applies an appropriate rotational force, the spring 31 deforms again, and the locking member 32 moves accordingly to avoid the corresponding wall surface, allowing the cover 2 / 2' to easily disengage from the locked state. This hinged design not only effectively prevents the cover 2' from being lost, but also further optimizes the user's operating experience. Because the first outer wall surface 11' and the first inner wall surface 21' adopt an arc design, the cover 2' can maintain a good fit with the housing 1' during rotation, avoiding jamming or misalignment caused by changes in angle. In addition, the arc structure also enhances the overall aesthetics, making it more in line with the aesthetic requirements of modern product design.

[0043] This embodiment of the utility model improves the flexibility, stability and aesthetics of the cover structure by hinged the cover 2' to the housing 1' and combining the arc-shaped first outer wall surface 11' and the first inner wall surface 21', providing users with another convenient and reliable way of operation.

[0044] In some embodiments, please refer to Figure 7 To better lock the first outer wall surface 11' and the first inner wall surface 21' together, the positional relationship between the elastic locking mechanism 3 and the hinge shaft 4 is defined. Specifically, within the cross-section of the first outer wall surface 11' or the first inner wall surface 21' (which may be a cross-section perpendicular to the first direction), the elastic locking mechanism 3 is positioned away from the hinge shaft 4.

[0045] Because the elastic locking mechanism 3 is located far from the hinge axis 4, it remains in its optimal position during the rotation of the cover 2 / 2', thus providing a more stable locking effect. Simultaneously, this arrangement effectively reduces interference from the hinge axis 4 on the movement of the locking element 32, making the cover 2 / 2' open and close more smoothly.

[0046] This embodiment of the invention further improves the functionality of the cover structure by placing the elastic locking mechanism 3 at a position away from the hinge axis 4. This design ensures the stability of the cover 2 / 2' during rotation and achieves a uniform and reliable locking effect.

[0047] In some embodiments, please refer to Figure 4 and Figure 8 To enhance the smoothness and stability of the cover structure in the closed state, the first outer wall surface 11 / 11' is tapered and a stepped surface 13 / 13' is provided. Specifically, the shell 1 / 1' also has a second outer wall surface 12 / 12' surrounding the first outer wall surface 11 / 11'; the first outer wall surface 11 / 11' tapes towards the inside of the shell 1 / 1' relative to the second outer wall surface 12 / 12' to form a stepped surface 13 / 13' between the first outer wall surface 11 / 11' and the second outer wall surface 12 / 12'; wherein, when the cover 2 / 2' closes the opening 10 / 10', the cover 2 / 2' abuts against the stepped surface 13 / 13'.

[0048] In operation, when the cover 2 / 2' closes the opening 10 / 10', the cover 2 / 2' fits tightly against the stepped surface 13 / 13'. Because the first outer wall surface 11 / 11' tapers inwards towards the shell 1 / 1' relative to the second outer wall surface 12 / 12', this design effectively eliminates the height difference between the cover 2 / 2' and the shell 1 / 1', thus improving the overall structural flatness when closed. Simultaneously, the stepped surface 13 / 13' provides a clear positioning reference for the cover 2 / 2', allowing for more precise alignment with the shell 1 / 1' when closed, further enhancing the stability and sealing of the cover.

[0049] This embodiment of the invention improves the flatness of the cover structure by shrinking the first outer wall surface 11 / 11'; and by setting the stepped surface 13 / 13', it provides a positioning reference for the cover body 2 / 2', thereby improving the stability of the cover.

[0050] In some embodiments, please refer to Figure 4 and Figure 8 To reduce the gap between the first outer wall surface 11 / 11' and the second outer wall surface 12 / 12' caused by the presence of the elastic locking mechanism 3, the elastic locking mechanism 3 is concealed. Specifically, the first outer wall surface 11 / 11' or the first inner wall surface 21 / 21' is provided with a mounting groove 111 / 111', the spring 31 is disposed in the mounting groove 111 / 111', and the locking member 32 extends out relative to the mounting groove 111 / 111'.

[0051] Because the spring 31 is housed within the mounting groove 111 / 111' and the locking member 32 protrudes from the mounting groove 111 / 111', this concealed design effectively reduces the gap between the first outer wall surface 11 / 11' and the second outer wall surface 12 / 12'. By embedding some components of the elastic locking mechanism 3 into the mounting groove 111 / 111', not only is the overall aesthetic of the cover structure maintained, but also the problems of dust accumulation or accidental damage caused by exposed parts are avoided. In addition, the design of the mounting groove 111 / 111' can also limit the movement trajectory of the spring 31 and the locking member 32, further improving the accuracy and stability of the locking action.

[0052] This embodiment of the invention achieves a dual improvement in both functionality and appearance of the cover structure by concealing the elastic locking mechanism 3 within the mounting groove 111 / 111'. This design not only solves the problem of excessive gaps affecting aesthetics in traditional structures but also improves the efficiency and reliability of the locking process.

[0053] In some embodiments, please refer to Figure 4 and Figure 8 To facilitate the concealment of part of the locking element 32 and the extension of the other part, a mounting cylinder 33 is added to the elastic locking mechanism 3, and the mounting cylinder 33 is designed to be narrowed. Specifically, one end of the mounting cylinder 33 is open, and the mounting cylinder 33 is attached to the inner wall of the mounting groove 111 / 111'. The edge of the open end of the mounting cylinder 33 is flush with the edge of the groove opening of the mounting groove 111 / 111'. The spring 31 is placed inside the mounting cylinder 33. The open end of the mounting cylinder 33 gradually narrows away from the bottom wall of the mounting cylinder 33, so as to restrict one end of the locking element 32 connected to the spring 31 inside the mounting cylinder 33, while the other end extends out of the open end.

[0054] Given that the constricted design of the cylinder is easier to implement than the constricted design of the shell 1 / 1', and that the spring 31 and locking element 32 can be integrated with the cylinder into a unified component, during installation, this entire component only needs to be placed into the corresponding mounting slot 111 / 111'. The constricted design of the mounting cylinder 33 not only simplifies the assembly process but also enhances the overall stability of the elastic locking mechanism 3. By integrating the spring 31 and locking element 32 into the mounting cylinder 33, this modular design facilitates subsequent maintenance and replacement; users only need to replace the entire cylinder assembly to complete the repair without individually adjusting the position of the spring 31 or locking element 32. Furthermore, since the open edge of the mounting cylinder 33 is flush with the groove edge of the mounting slot 111 / 111', this design further optimizes the flatness of the cover structure's appearance. At the same time, the protruding design of the locking element 32 ensures that it can function properly during the movement of the cover 2 / 2' without affecting its functionality due to excessive concealment.

[0055] This embodiment of the utility model achieves modularization and integration of the elastic locking mechanism 3 by adding an installation cylinder 33 and adopting a tapered design.

[0056] In some embodiments, please refer to Figure 4 and Figure 8 In order to reduce the wear of the locking member 32 on the first inner wall surface 21 / 21', the locking member 32 is set as a ball, and the inner side of the opening of the mounting cylinder 33 is formed with an arc surface that matches the surface of the locking member 32.

[0057] The spherical locking member 32 of this utility model embodiment can reduce wear on the first inner wall surface 21 / 21' or the first outer wall surface 11 / 11' when it contacts the first inner wall surface 21 / 21' or the first outer wall surface 11 / 11'; and avoid jamming that may be caused by non-smooth contact, thereby improving the smoothness of operation of the cover structure.

[0058] This utility model embodiment also provides an earphone device. The earphone device includes an earphone body and a cover structure as shown in any of the above figures. A receiving cavity is formed inside the cover structure, and the earphone body is placed within this cavity. The cover structure provides comprehensive protection for the earphone body, preventing damage from external dust, impacts, or other factors. In a specific embodiment of the earphone device, a positioning mechanism for fixing the earphone body is also provided inside the housing 1 / 1'. This positioning mechanism can be an elastic clamping member or a locking groove 211 / 211' structure to ensure that the earphone body remains stable within the housing 1 / 1', preventing damage caused by shaking or collisions. Simultaneously, the design of the positioning mechanism helps users quickly find the correct position when inserting the earphone, further improving operational efficiency.

[0059] In some embodiments, to further enhance the portability of the headphone device, a lanyard hole or buckle structure is added to the exterior of the cover structure. These additional designs allow users to attach the headphone device to a backpack, belt, or other personal items, thereby reducing the burden of carrying it.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cover structure, characterized in that, include: A housing having an opening; the outer side of the housing having a first outer wall surface surrounding the opening; A cover for closing the opening, the inner side of the cover having a first inner wall surface for fitting the first outer wall surface; An elastic locking mechanism includes a spring and a locking member, wherein one end of the spring is connected to one of the first outer wall surface and the first inner wall surface, and the locking member is connected to the other end of the spring; During the process of the cover closing or opening the opening, the spring deforms so that the locking member can abut against or avoid the other of the first outer wall surface and the first inner wall surface, thereby locking or at least partially separating the first inner wall surface and the first outer wall surface.

2. The covering structure according to claim 1, characterized in that, The first outer wall surface and the first inner wall surface extend along a first direction, so that the cover moves along the first direction to open or close the opening.

3. The covering structure according to claim 2, characterized in that, Two elastic locking mechanisms are provided; within the cross-section of the first outer wall surface or the first inner wall surface, the two elastic locking mechanisms are arranged far apart from each other.

4. The covering structure according to claim 1, characterized in that, The first outer wall surface and the first inner wall surface are both arc surfaces, and the first inner wall surface and the first outer wall surface are hinged together by a hinge axis, so that the cover can rotate around the hinge axis to open or close the opening.

5. The covering structure according to claim 4, characterized in that, Within the cross-section of the first outer wall surface or the first inner wall surface, the elastic locking mechanism is disposed away from the hinge axis.

6. The covering structure according to claim 1, characterized in that, The housing also has a second outer wall surface surrounding the first outer wall surface; the first outer wall surface tapers toward the inside of the housing relative to the second outer wall surface to form a stepped surface between the first outer wall surface and the second outer wall surface; When the cover closes the opening, the cover abuts against the step surface.

7. The covering structure according to claim 6, characterized in that, The first outer wall surface or the first inner wall surface is provided with a mounting groove, the spring is disposed in the mounting groove, and the locking member extends out relative to the mounting groove.

8. The cover structure according to claim 7, characterized in that, The elastic locking mechanism also includes an open mounting cylinder, which is attached to the inner wall of the mounting groove, and the edge of the open end of the mounting cylinder is flush with the edge of the groove opening of the mounting groove. The spring is placed inside the mounting cylinder; the opening of the mounting cylinder gradually narrows away from the bottom wall of the mounting cylinder to restrict one end of the locking member connected to the spring inside the mounting cylinder, while the other end extends out of the opening.

9. The cover structure according to claim 8, characterized in that, The locking element is a sphere, and the inner side of the opening of the mounting cylinder has an arc surface that matches the surface of the locking element.

10. A headphone device, characterized in that, include: The cover structure as described in any one of claims 1-9 has an internal receiving cavity; The main body of the earphone can be stored in the receiving cavity.

Images