Riding helmet sound equipment

Abstract

The utility model provides a riding helmet sound box comprising a housing, the surface of the housing is provided with a first clamping structure and a second clamping structure, and the interior of the housing is provided with a loudspeaker; the installation structure is provided with a third clamping structure corresponding to the first clamping structure in position and a fourth clamping structure corresponding to the second clamping structure in position, and a first through hole penetrates through the two ends of the third clamping structure; during installation, the main body portion of the first clamping structure is arranged in the first through hole, the end portion of the first clamping structure abuts against the top face of the third clamping structure, and the second clamping structure is arranged in the fourth clamping structure. A groove-shaped structure matched with the installation structure is formed in the lower portion of the riding helmet, and the installation structure is inserted into the groove-shaped structure through the third clamping structure and the fourth clamping structure. According to the utility model, rapid assembly and disassembly of the sound box can be realized.

Description

Technical Field

[0001] This utility model relates to the field of cycling helmet technology, specifically to a cycling helmet speaker. Background Technology

[0002] Cycling helmets are head protection devices specifically designed for cyclists, including road cycling helmets, mountain bike helmets, and commuter helmets. They are primarily used to reduce the risk of head injury from accidental impacts or falls during cycling. However, existing speakers designed for cycling helmets are typically fixed in place, making installation and removal inconvenient. Furthermore, if the speaker breaks, it cannot be replaced promptly, which is extremely inconvenient.

[0003] Patent document CN215603466U discloses a novel smart helmet structure. Specifically, it discloses that a fixing ring is fixedly installed at the lower end of the helmet body, a speaker is fixedly installed inside the fixing ring, a central control unit is set inside the controller, and a helmet control unit is set inside the fixing ring. The helmet control unit is electrically connected to the lighting, turn signals, and speaker respectively. The central control unit is connected to the rider's mobile device via Bluetooth module, allowing the rider to connect to the helmet control unit through the controller and enable the speaker to play music.

[0004] The smart helmet described in the aforementioned patent allows riders to connect to the helmet's control unit via a controller, enabling music playback. However, because the speaker is fixedly installed inside the fixed ring, replacement is extremely inconvenient, thus requiring improvement. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a cycling helmet speaker that can be quickly installed and removed from a cycling helmet.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A cycling helmet speaker includes a shell with a first engaging structure and a second engaging structure on its surface, and a speaker inside the shell. A mounting structure is also included, with a third engaging structure corresponding to the position of the first engaging structure and a fourth engaging structure corresponding to the position of the second engaging structure. A first through hole passes through both ends of the third engaging structure. During installation, the main body of the first engaging structure is placed in the first through hole, and the end of the first engaging structure abuts against the top surface of the third engaging structure. The second engaging structure is located inside the fourth engaging structure. A groove-shaped structure matching the mounting structure is formed at the bottom of the cycling helmet, and the mounting structure is inserted into the groove-shaped structure through the third and fourth engaging structures.

[0008] Furthermore, at least one snap-fit ​​connector is provided at the end of the first snap-fit ​​structure, and the first snap-fit ​​structure abuts against the top surface of the third snap-fit ​​structure through the snap-fit ​​connector.

[0009] Furthermore, the number of the snap-fit ​​connectors is one, and the snap-fit ​​connector is rotatably disposed at the end of the first engaging structure.

[0010] Furthermore, the number of the card connectors is two, the two card connectors are spaced apart, and the two card connectors are elastic.

[0011] Furthermore, the distance between the two card connectors is greater than the diameter of the first through hole.

[0012] Furthermore, the end of the first engaging structure is U-shaped.

[0013] Furthermore, there are three second engaging structures, which are respectively disposed on the top surface of the housing, the front sidewall of the housing, and the rear sidewall of the housing; the front sidewall of the mounting structure is provided with a second through hole, and the rear sidewall of the mounting structure is provided with a third through hole. The second engaging structure located on the top surface of the housing is connected to the four engaging structures, the second engaging structure located on the front sidewall of the housing is connected to the second through hole, and the second engaging structure located on the rear sidewall of the housing is connected to the third through hole.

[0014] Furthermore, the top surface of the mounting structure is provided with a fifth engaging structure, and the mounting structure is inserted into the groove structure through the third engaging structure, the fourth engaging structure and the fifth engaging structure.

[0015] Furthermore, the housing includes a first sub-housing and a second sub-housing connected to each other, the first engaging structure and the second engaging structure are respectively disposed on the surface of the first sub-housing, and the horn is disposed inside the second sub-housing.

[0016] Furthermore, the first sub-shell is provided with a first sound outlet and a second sound outlet, the first sound outlet being disposed on the inner wall of the first sub-shell and the second sound outlet being disposed on the bottom surface of the first sub-shell.

[0017] Furthermore, the inner wall of the first sub-shell is provided with a first mounting post, and the inner wall of the second sub-shell is provided with a second mounting post corresponding to the first mounting post. The first sub-shell and the second sub-shell are connected to each other through the first mounting post and the second mounting post.

[0018] Furthermore, the inner wall of the first sub-shell is provided with a limiting protrusion, and the inner wall of the second sub-shell is provided with a limiting groove that cooperates with the limiting protrusion, and the limiting protrusion and the limiting groove are connected.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention connects the housing and the mounting structure by setting a first and a second engaging structure on the housing, housing a speaker inside the housing, and setting a third and a fourth engaging structure at corresponding positions on the mounting structure. Connecting the first and third engaging structures, and connecting the second and fourth engaging structures, allows for the connection of the housing and the mounting structure. Finally, by aligning the third and fourth engaging structures on the mounting structure with the interface of the groove-shaped structure located under the cycling helmet, the speaker can be installed or removed. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the decomposed structure;

[0023] Figure 3 yes Figure 1 A top-down view;

[0024] Figure 4 yes Figure 1 A three-dimensional structural diagram of the first subshell.

[0025] Figure 5 yes Figure 1 A three-dimensional structural diagram of the installation structure in the middle;

[0026] Figure 6 yes Figure 1 Top view of the installation structure;

[0027] Figure 7 This is an installation diagram of an embodiment of the present invention;

[0028] Figure 8 This is a top view of the first sub-shell of the second embodiment of the present invention;

[0029] Figure 9 yes Figure 8 A magnified structural diagram at point A;

[0030] Figure 10 This is a three-dimensional structural schematic diagram of the card connector according to the second embodiment of the present invention;

[0031] Figure 11This is a top view of the second embodiment of the present invention when the card connector and the first through hole coincide;

[0032] Figure 12 This is a top view schematic diagram of the second embodiment of the present invention when the card connector and the first through hole are misaligned.

[0033] Figure Labels

[0034] 100. Cycling helmet speaker;

[0035] 1. Housing; 11. First engaging structure; 111. Snap-fit ​​connector; 1111. Protruding structure; 112. End; 113. Main body; 114. Recessed structure; 1141. Groove; 12. Second engaging structure; 13. First sub-housing; 131. First sound outlet; 132. Second sound outlet; 133. First mounting post; 134. Limiting groove; 14. Second sub-housing; 141. Recessed portion; 142. Second mounting post; 143. Limiting protrusion;

[0036] 2. Mounting structure; 21. Third engaging structure; 211. First through hole; 2111. Central part; 2112. Extension part; 22. Fourth engaging structure; 221. Engaging groove; 23. Second through hole; 24. Third through hole; 25. Fifth engaging structure. Detailed Implementation

[0037] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top surface", "bottom surface", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely exemplary and does not limit the scope of protection of the utility model.

[0041] Please refer to Figures 1-7 This utility model discloses a cycling helmet speaker 100, including a housing 1. The surface of the housing 1 is provided with a first engaging structure 11 and a second engaging structure 12. A speaker (not shown in the figure) is disposed inside the housing 1. A mounting structure 2 is provided, on which a third engaging structure 21 corresponding to the position of the first engaging structure 11 and a fourth engaging structure 22 corresponding to the position of the second engaging structure 12 are respectively provided. A first through hole 211 passes through both ends of the third engaging structure 21. The first engaging structure 11 includes an integrally formed end portion 112 and a main body portion 113. During installation, the main body portion 113 of the first engaging structure 11 is disposed in the first through hole 211, and the end portion 112 of the first engaging structure 11 abuts against the top surface of the third engaging structure 21. The second engaging structure 12 is disposed inside the fourth engaging structure 22. A groove-shaped structure matching the mounting structure 2 is opened at the bottom of the cycling helmet, and the mounting structure 2 is inserted into the groove-shaped structure through the third engaging structure 21 and the fourth engaging structure 22.

[0042] By setting a first engaging structure 11 and a second engaging structure 12 on the housing 1, and installing a speaker inside the housing 1, and setting a third engaging structure 21 and a fourth engaging structure 22 at corresponding positions on the mounting structure 2, the housing 1 and the mounting structure 2 can be connected by connecting the first engaging structure 11 to the third engaging structure 21 and connecting the second engaging structure 12 to the fourth engaging structure 22. Finally, by aligning the third engaging structure 21 and the fourth engaging structure 22 on the mounting structure 2 with the interface of the groove-shaped structure located under the cycling helmet, the cycling helmet speaker 100 can be quickly installed and removed.

[0043] In this embodiment, the housing 1 includes a first sub-housing 13 and a second sub-housing 14 connected to each other, wherein the first sub-housing 13 is located on the right side and the second sub-housing 14 is located on the left side. When viewed from the rear side of the first sub-housing 13, the cross-sectional dimensions of the first sub-housing 13 from top to bottom are basically not significantly different, and the first engaging structure 11 and the second engaging structure 12 are respectively disposed on the top surface of the first sub-housing 13. When viewed from the rear side of the second sub-housing 14, the cross-sectional dimensions of the upper part of the second sub-housing 14 are much smaller than the cross-sectional dimensions of the lower part of the second sub-housing 14. When viewed from the rear side, the sum of the cross-sectional dimensions of the first sub-housing 13 and the upper cross-sectional dimensions of the second sub-housing 14 is smaller than the cross-sectional dimensions of the mounting structure 2, thereby enabling the first engaging structure 11 and the third engaging structure 21 to connect, and the second engaging structure 12 and the fourth engaging structure 22 to connect, so that the mounting structure 2 can simultaneously cover the top surface of the first sub-housing 13 and the top surface of the second sub-housing 14.

[0044] In this embodiment, a first sound outlet 131 and a second sound outlet 132 are provided on the first sub-shell 13, wherein the first sound outlet 131 is located on the inner wall of the first sub-shell 13, and the second sound outlet 132 is located on the bottom surface of the first sub-shell 13. Specifically, the number of first sound outlets 131 can be multiple. As a preferred embodiment, in this embodiment, the number of first sound outlets 131 is six, and the six first sound outlets 131 are arranged in an array along the length direction of the first sub-shell 13. The advantages are: First, by adjusting the phase of the first sound outlets 131, sound beamforming can be achieved, so that sound wave energy can be concentrated in a specific direction, thereby reducing environmental interference and sound diffusion. For example, when a user puts on the helmet, the sound waves need to be focused near the ear. In this case, the first sound outlet 131 closest to the ear can slightly delay its sound emission, while the first sound outlet 131 furthest from the ear can emit sound earlier. This ensures that all sound waves arrive at the ear in phase, allowing them to arrive synchronously and creating constructive interference. Secondly, multiple first sound outlets 131 can share the sound pressure load, preventing overload of a single outlet 131 and reducing the risk of distortion. Thirdly, if a single first sound outlet 131 becomes blocked, the other outlets can maintain normal sound emission. Fourthly, multiple first sound outlets 131 can distribute the internal layout of the first sub-shell 13, reducing heat accumulation inside the first sub-shell 13 and extending the lifespan of components.

[0045] More specifically, the number of second sound outlets 132 can also be multiple. As a preferred embodiment, in this embodiment, the number of second sound outlets 132 is two. The functions of setting the second sound outlets 132 are as follows: 1. When the user wears a cycling helmet, their hair may partially or completely cover the first sound outlet 131, but sound waves can still be emitted from the second sound outlets 132. 2. They can work with the first sound outlet 131 to emit sound waves in two directions. When the sound waves from the first sound outlet 131 are attenuated due to headwinds, the sound waves from the second sound outlet 132 can still cover the area of ​​the human ear, reducing the impact of wind on sound. 3. Multiple second sound outlets 132 can share the sound pressure load, avoiding overload of a single second sound outlet 132 and reducing the risk of distortion. 4. When a single second sound outlet 132 is blocked, the other second sound outlets 132 can maintain normal sound output function. Fifth, multiple second sound outlets 132 can disperse the internal layout of the first sub-shell 13, reduce the internal heat accumulation of the first sub-shell 13, and extend the life of components.

[0046] In this embodiment, a first mounting post 133 is provided on the inner wall of the first sub-shell 13 and on both sides of the first sound outlet 131. The first mounting post 133 is a hollow column.

[0047] In this embodiment, the horn is disposed inside the second sub-housing 14. Specifically, the lower part of the inner wall of the second sub-housing 14 is recessed inward to form a recess 141, in which the horn is installed. A second mounting post 142 protrudes from the inner wall of the upper part of the second sub-housing 14. The size of the second mounting post 142 matches the inner diameter of the first mounting post 133 described above (the size of the second mounting post 142 can be greater than or equal to the inner diameter of the first mounting post 133). The second mounting post 142 is inserted into the first mounting post 133, and the interference fit between the second mounting post 142 and the first mounting post 133 connects the second sub-housing 14 and the first sub-housing 13 together. Alternatively, after the second mounting post 142 is inserted into the first mounting post 133, it is fixedly connected to the first mounting post 133 using screws or other connectors, which can also initially connect the second sub-housing 14 and the first sub-housing 13 together. The specific connection method is determined by the actual working conditions and is not limited here. The advantages of this structure are: 1. Improved installation efficiency: The mating design of the first mounting post 133 and the second mounting post 142 allows for direct physical insertion to complete the connection, eliminating the need for screwdrivers, welding equipment, or adhesives, making it particularly suitable for automated production lines. For example, in consumer electronics products (such as Bluetooth headset charging cases), traditional screw fixing requires 4-6 steps, while the plug-in structure can complete it in one step, reducing single-piece assembly time by more than 50%. 2. Cost optimization: Reducing the number of small parts such as screws, nuts, and washers lowers the complexity of supply chain management and BOM (Bill of Materials) costs. 3. High-precision positioning and alignment: The mating design of the first mounting post 133 and the second mounting post 142 ensures that the first sub-shell 13 and the second sub-shell 14 automatically align during connection, reducing manual adjustments and thus improving the precision of the connection between the first sub-shell 13 and the second sub-shell 14. IV. Modularity and maintainability: The matching design of the first mounting post 133 and the second mounting post 142 supports standardized production, facilitates mass manufacturing and replacement, and this reversible connection design allows for non-destructive disassembly, so that the first sub-housing 13 or the second sub-housing 14 can be replaced when it is damaged.

[0048] More specifically, a limiting protrusion 143 is provided at the edge of the inner wall of the first sub-shell 13, and correspondingly, a limiting groove 134 is provided at the edge of the inner wall of the second sub-shell 14. The size of the limiting protrusion 143 matches the size of the limiting groove 134, and the limiting protrusion 143 is inserted into the limiting groove 134. The functions of providing the limiting protrusion 143 and the limiting groove 134 are as follows: First, the cooperation between the limiting protrusion 143 and the limiting groove 134 can quickly achieve precise alignment between the first sub-shell 13 and the second sub-shell 14, reducing adjustment time during assembly. Second, the unique positions of the limiting protrusion 143 and the limiting groove 134 can prevent incorrect installation direction or misalignment of the first sub-shell 13 and the second sub-shell 14, reducing human error. Third, the limiting protrusion 143 embedded in the limiting groove 134 forms a physical latch, which can share the stress generated by external impact or vibration, and improve the overall rigidity of the first sub-shell 13 and the second sub-shell 14 after connection. IV. The limiting protrusion 143 provides natural guidance when inserted into the limiting groove 134, making the assembly process smoother and eliminating the need for complex tools. V. The dimensions of the limiting protrusion 143 and the limiting groove 134 are matched, meaning that the limiting protrusion 143 and the limiting groove 134 fit tightly together, reducing gaps and thus providing dust and water protection, which helps protect the speaker located inside the second sub-housing 14.

[0049] In this embodiment, at least one snap-fit ​​connector 111 is provided at the end 112 of the first engaging structure 11 away from the first sub-shell 13. As a preferred embodiment, there are two snap-fit ​​connectors 111 in this embodiment, which are spaced apart and are elastic. Specifically, the end 112 of the first engaging structure 11 is U-shaped, and the two snap-fit ​​connectors 111 are respectively provided at the opening of the end 112 of the first engaging structure 11. In this embodiment, the snap-fit ​​connectors 111 and the end 112 of the first engaging structure 11 are integrally formed. Of course, they can also be connected by other connection methods, which are not limited here. Since the end 112 of the aforementioned first engaging structure 11 is U-shaped, the curved portion of this U-shaped end 112 is equivalent to a symmetrical cantilever beam system. When an external force (such as compression or tension) is applied to its open end, it will convert the external force into elastic potential energy through bending deformation. When the external force is removed, the stored elastic potential energy is released, and the end 112 of the U-shaped structure returns to its initial shape by relying on the elastic restoring force of the material, thereby making the two snap-fit ​​connectors 111 connected at the opening of the end 112 of the first engaging structure 11 elastic. Of course, the snap-fit ​​connectors 111 can also obtain elasticity through their own structure, for example, the snap-fit ​​connectors 111 themselves are curved, which is not limited here.

[0050] Specifically, when the two snap-fit ​​connectors 111 are not subjected to external force, the distance between the two snap-fit ​​connectors 111 (specifically, the distance between the edges of the two snap-fit ​​connectors 111, i.e., the maximum distance between the two snap-fit ​​connectors 111) is greater than the diameter of the first through hole 211, and the cross-sectional dimension of the main body 113 of the first engaging structure 11 is basically consistent with the diameter of the first through hole 211. At this time, the two snap-fit ​​connectors 111 cannot pass through the first through hole 211. When an external force is applied to the two snap-fit ​​connectors 111, causing the two snap-fit ​​connectors 111 to come together, the maximum distance between the two snap-fit ​​connectors 111 is less than the diameter of the first through hole 211, and the two snap-fit ​​connectors 111 can pass through the first through hole 211. When the two snap-fit ​​connectors 111 pass through the first through hole 211, the elastic potential energy stored in the end 112 of the first engaging structure 11 is released, and the elastic restoring force of the material itself restores the two snap-fit ​​connectors 111 to their initial state. At this time, since the distance between the two snap-fit ​​connectors 111 described above is greater than the diameter of the first through hole 211, the main body 113 and the end 112 of the first engaging structure 11 are disposed in the first through hole 211, and the two snap-fit ​​connectors 111 will press against the top surface of the third engaging structure 21, thereby connecting the first engaging structure 11 and the third engaging structure 21 together.

[0051] More specifically, when viewed from above the mounting structure 2, the opening of the first through hole 211 includes a central portion 2111 and extended portions 2112. The central portion 2111 is circular, and the extended portions 2112 are strip-shaped, with four extended portions 2112 located above, below, left, and right of the central portion 2111. Correspondingly, when viewed from above the first sub-housing 13, the two snap-fit ​​connectors 111 are semi-circular in shape, and the size of the circle formed when the two snap-fit ​​connectors 111 are brought together is substantially the same as the size of the central portion 2111 of the first through hole 211, allowing the two snap-fit ​​connectors 111 to pass through the central portion 2111 of the first through hole 211 when brought together. After the two locking connectors 111 are released, they return to their original spacing under elastic action. When viewed from above, the two locking connectors 111 cover the extended portion of the first through hole 211, meaning that the edges of the extended portion of the two locking connectors 111 are blocked, forming multiple limiting points to prevent the two locking connectors 111 from reversibly exiting the third engaging structure 21. Furthermore, the four extended portions 2112 evenly distribute the pressure after the locking connectors 111 return to their original spacing, avoiding localized stress concentration. This design ensures the connection strength between the first engaging structure 11 and the third engaging structure 21 while reducing the risk of material fatigue during long-term use.

[0052] It should be noted that the number of snap-fit ​​connectors 111 can exceed two. When the number of snap-fit ​​connectors 111 exceeds two, the end 112 of the first engaging structure 11 has multiple openings, that is, the end 112 of the first engaging structure 11 has multiple U-shaped structures, and each U-shaped structure has two snap-fit ​​connectors 111 at its opening. Therefore, the number of snap-fit ​​connectors 111 is not limited here, and the specific number is determined according to the actual working conditions.

[0053] In this embodiment, there are three second engaging structures 12, which are respectively disposed on the top surface, the front sidewall, and the rear sidewall of the first sub-shell 13. Correspondingly, a second through hole 23 is provided on the front sidewall of the mounting structure 2, the shape and diameter of which match the second engaging structure 12 located on the front sidewall of the first sub-shell 13. A third through hole 24 is provided on the rear sidewall of the mounting structure 2, the shape and diameter of which match the second engaging structure 12 located on the rear sidewall of the first sub-shell 13.

[0054] Specifically, the fourth engaging structure 22 is arched and protrudes from the top surface of the mounting structure 2, while the bottom surface of the mounting structure 2 is recessed towards the fourth engaging structure 22 to form an engaging groove 221, which is located inside the fourth engaging structure 22. The size of the engaging groove 221 matches the size of the second engaging structure 12 located on the top surface of the first sub-housing 13. When the mounting structure 2 and the first sub-housing 13 are connected, the second engaging structure 12 located on the top surface of the first sub-housing 13 is engaged in the engaging groove 221, the second engaging structure 12 located on the front sidewall of the first sub-housing 13 is engaged in the second through hole 23, and the second engaging structure 12 located on the rear sidewall of the first sub-housing 13 is engaged in the third through hole 24.

[0055] At this time, when the second engaging structure 12 and the fourth engaging structure 22 located on the top surface of the first sub-shell 13 are engaged, the displacement distance between the first sub-shell 13 and the mounting structure 2 in the X-axis (front-back) and Y-axis (left-right) directions can be limited. When the second engaging structure 12 and the second through hole 23 located on the front side of the first sub-shell 13 are engaged, and the second engaging structure 12 and the third through hole 24 on the front side of the first sub-shell are engaged, the displacement distance between the first sub-shell 13 and the mounting structure 2 in the Y-axis (left-right) and Z-axis (up-down) directions can be limited. This prevents the first sub-shell 13 and the mounting structure 2 from becoming loose, which would lead to structural instability, and ensures a tight connection between the first sub-shell 13 and the mounting structure 2. In addition, this three-way interlocking structure can simultaneously distribute the load that was originally concentrated on a single plane to the top surface, front side wall, and rear side wall of the first sub-shell 13. When a user is wearing a cycling helmet and an accident occurs, i.e., when an external impact acts on the first sub-shell 13 and the mounting structure 2, the second engaging structure 12 and the fourth engaging structure 22 located on the top surface of the first sub-shell 13 can undergo slight elastic deformation and absorb the initial impact energy. The sliding friction of the second engaging structure 12 and the second through hole 23 located on the front side of the first sub-shell 13 further converts kinetic energy into heat energy, thereby achieving a step-by-step energy dissipation effect.

[0056] Of course, the number of second locking structures 12 can also be two or more than three. By sacrificing a small amount of material cost, the reliability and maintainability of the first sub-shell 13 and the mounting structure 2 can be improved. This is not limited here.

[0057] In this embodiment, the top surface of the mounting structure 2 is provided with a fifth engaging structure 25. The fifth engaging structure 25 and the fourth engaging structure 22 are both arched in shape, and the third engaging structure 21 is frustum-shaped in shape. The fifth engaging structure 25, the third engaging structure 21 and the fourth engaging structure 22 are arranged sequentially from the front to the rear of the mounting structure 2. The fifth engaging structure 25 and the third engaging structure 21 are arranged adjacent to each other, and the third engaging structure 21 and the fourth engaging structure 22 are arranged at intervals.

[0058] Specifically, the length direction of the fifth engaging structure 25 is consistent with the width direction of the mounting structure 2, and the length direction of the fourth engaging structure 22 is consistent with the length direction of the mounting structure 2. This means that the length directions of the fifth engaging structure 25 and the fourth engaging structure 22 are perpendicular to each other. When the mounting structure 2 is connected to the cycling helmet, the fifth engaging structure 25, the third engaging structure 21, and the fourth engaging structure 22 are respectively inserted into the corresponding interfaces (not shown in the figure) of the grooved structure of the cycling helmet. The purpose of setting the length directions of the fifth engaging structure 25 and the fourth engaging structure 22 to be perpendicular is that, since the length direction of the fifth engaging structure 25 is consistent with the width direction of the mounting structure 2, the displacement of the mounting structure 2 and the cycling helmet in the X-axis (front-back) direction can be limited. Since the length direction of the fourth engaging structure 22 is consistent with the length direction of the mounting structure 2, the displacement of the mounting structure 2 and the cycling helmet in the Y-axis (left-right) direction can be limited. This prevents the mounting structure 2 and the cycling helmet from becoming loose, which could lead to structural instability, and ensures a tight connection between the mounting structure 2 and the cycling helmet.

[0059] The working principle of this utility model is described below to facilitate a better understanding of it:

[0060] The user first applies external force to the two snap-fit ​​connectors 111, causing them to come together. At this point, the distance between the two snap-fit ​​connectors 111 is less than the diameter of the first through hole 211, allowing them to pass through. Once the two snap-fit ​​connectors 111 have passed through the first through hole 211, the elastic potential energy stored at the end 112 of the first engaging structure 11 is released, and the elastic restoring force of the material restores the two snap-fit ​​connectors 111 to their initial state. At this point, the distance between the two snap-fit ​​connectors 111 is greater than the diameter of the first through hole 211. Therefore, the main body 113 and the end 112 of the first engaging structure 11 are positioned within the first through hole 211, and the two snap-fit ​​connectors 111 abut against the top surface of the third engaging structure 21, thus connecting the first engaging structure 11 and the third engaging structure 21 together. At this time, the housing 1 and the mounting structure 2 are connected. Subsequently, align the third engaging structure 21, the fourth engaging structure 22, and the fifth engaging structure 25 of the mounting structure 2 with the corresponding interfaces of the groove structure on the cycling helmet, and the mounting structure 2 together with the shell 1 can be quickly installed on the cycling helmet.

[0061] Please refer to Figures 8-12 , Figure 8 This is a top view of the first sub-shell 13 of the second embodiment of the present invention. Figure 9 This is an enlarged structural diagram of the first subshell 13 at point A. Figure 10 This is a three-dimensional structural diagram of connector 111. Figure 11This is a top view of the snap connector 111 and the first through hole 211 when they coincide. Figure 12 This is a top view of the snap-fit ​​connector 111 and the first through hole 211 when they are misaligned. The difference between the second embodiment and the first embodiment lies in the change of the number of snap-fit ​​connectors 111 and the connection method between the snap-fit ​​connectors 111 and the first engaging structure 11. Specifically:

[0062] In this embodiment, when there is only one snap-fit ​​connector 111, the snap-fit ​​connector 111 is rotatably disposed at the end 112 of the first engaging structure 11.

[0063] Specifically, the rod of the snap-fit ​​connector 111 is provided with a protruding structure 1111, which can extend and retract relative to the rod of the snap-fit ​​connector 111. The extension and retraction can be achieved by incorporating a spring inside the rod of the snap-fit ​​connector 111, or by other methods, which are conventional techniques known to those skilled in the art and are not limited here. Correspondingly, a recessed structure 114 is provided on the inner wall of the first engaging structure 11. The first part of the recessed structure 114 is vertical, and the second part is arc-shaped. Specifically, one end of the first part of the recessed structure 114 extends to the opening of the end 112 of the first engaging structure 11, and the other end of the first part of the recessed structure 114 is connected to one end of the second part of the recessed structure 113. The other end of the second part of the recessed structure 113 extends along the inner wall of the first engaging structure 11 and is arc-shaped (or it can surround the inner wall of the first engaging structure 11, i.e., circular). The protruding structure 1111 first moves along the first part of the recessed structure 114, thereby inserting the snap connector 111 into the first engaging structure 11, and then moves along the second part of the recessed structure 114, thereby causing the snap connector 111 to rotate about the central axis of the first engaging structure 11.

[0064] More specifically, the second part of the recessed structure 114 is provided with multiple slots 1141. Since the aforementioned protruding structure 1111 can extend and retract relative to the rod of the snap-fit ​​connector 111, the protruding structure 1111 can engage in the corresponding slot 1141 during the rotation of the snap-fit ​​connector 111 around the central axis of the first engaging structure 11. Further rotation allows it to engage in the next slot 1141. The advantages of this structure are: 1. Precise physical positioning can be achieved through the mechanical cooperation between the protruding structure 1111 and the slots 1141. Each slot 1141 corresponds to a preset angular position to ensure that the snap-fit ​​connector 111 automatically locks in the corresponding position. 2. The protruding structure 1111 produces a distinct sound and tactile sensation when sliding into the slot 1141, allowing the user to complete the operation without visual confirmation even in a dark environment. Third, the dimensions of the groove 1141 can be set to be basically consistent with the protrusion structure 1111, thereby improving the anti-displacement stability between the groove 1141 and the protrusion structure 1111, and avoiding the separation of the first sub-shell 13 and the mounting structure 2 due to the additional displacement of the protrusion structure 1111 when subjected to external impact.

[0065] In this embodiment, when viewed from above the mounting structure 2, the shape and size of the opening of the first through hole 211 match the size and shape of the snap-fit ​​connector 111. Therefore, the snap-fit ​​connector 111 can directly pass through the first through hole 211, and the depth of the first through hole 211 is basically the same as the length of the first engaging structure 11. Thus, after the snap-fit ​​connector 111 passes through the first through hole 211, the first engaging structure 11 can cover the first through hole 211 as much as possible. By passing the snap-fit ​​connector 111 through the first through hole 211 and then rotating it, the snap-fit ​​connector 111 can be pressed against the top surface of the third engaging structure 21, thereby connecting the first sub-shell 13 and the mounting structure 2. When disassembling the first sub-shell 13 and the mounting structure 2, simply rotate the snap-fit ​​connector 111 in the opposite direction until it coincides with the opening of the first through hole 211. The advantage of this structure is that, in the first embodiment, the first engaging structure 11 is set in a U-shape, thereby making the two engaging connectors 111 elastic. However, the stability of this structure is relatively low, and after long-term use, the first engaging structure 11 may fatigue and thus fail to provide elasticity to the engaging connectors 111. In this embodiment, the engaging connectors 111 are rotatably set at the end 112 of the first engaging structure 11, so the material fatigue capacity of the material itself does not need to be considered.

[0066] In addition, when there is only one snap-fit ​​connector 111, the snap-fit ​​connector 111 can also pass through the first through hole 211 by storing elastic force as in the first embodiment, and the snap-fit ​​connector 111 presses against the top surface of the third engaging structure 21 by releasing the elastic force. For example, the snap-fit ​​connector 111 can be bent, which is not limited here.

[0067] Other technical features and effects are the same as in the first embodiment. Please refer to the following for details. Figures 1-7 The explanation will not be elaborated here.

Claims

1. A cycling helmet speaker, characterized in that, include: The housing has a first engaging structure and a second engaging structure on its surface, and a horn is provided inside the housing; The mounting structure is provided with a third engaging structure corresponding to the position of the first engaging structure and a fourth engaging structure corresponding to the position of the second engaging structure, and a first through hole passing through both ends of the third engaging structure. During installation, the main body of the first engaging structure is disposed in the first through hole, and the end of the first engaging structure abuts against the top surface of the third engaging structure, while the second engaging structure is disposed inside the fourth engaging structure. The cycling helmet has a groove-shaped structure at the bottom that matches the mounting structure. The mounting structure is inserted into the groove-shaped structure through the third and fourth engaging structures.

2. The cycling helmet speaker according to claim 1, characterized in that: The first engaging structure has at least one snap-fit ​​connector at its end, and the first engaging structure abuts against the top surface of the third engaging structure through the snap-fit ​​connector.

3. The cycling helmet speaker according to claim 2, characterized in that: The number of the snap-fit ​​connectors is one, and the snap-fit ​​connector is rotatably disposed at the end of the first snap-fit ​​structure.

4. The cycling helmet speaker according to claim 2, characterized in that: The number of the card connectors is two, the two card connectors are spaced apart, and the two card connectors are elastic.

5. The cycling helmet speaker according to claim 4, characterized in that: The distance between the two card connectors is greater than the diameter of the first through hole.

6. The cycling helmet speaker according to claim 4, characterized in that: The end of the first engaging structure is U-shaped.

7. The cycling helmet speaker according to claim 1, characterized in that: The number of the second engaging structures is three, and the three second engaging structures are respectively disposed on the top surface of the housing, the front side wall of the housing, and the rear side wall of the housing; The front sidewall of the mounting structure is provided with a second through hole, and the rear sidewall of the mounting structure is provided with a third through hole. The second engaging structure located on the top surface of the housing is connected to the four engaging structure. The second engaging structure located on the front sidewall of the housing is connected to the second through hole, and the second engaging structure located on the rear sidewall of the housing is connected to the third through hole.

8. The cycling helmet speaker according to claim 1, characterized in that: The top surface of the mounting structure is provided with a fifth engaging structure, and the mounting structure is inserted into the groove structure through the third engaging structure, the fourth engaging structure and the fifth engaging structure.

9. The cycling helmet speaker according to claim 1, characterized in that: The housing includes a first sub-housing and a second sub-housing connected to each other. The first engaging structure and the second engaging structure are respectively disposed on the surface of the first sub-housing, and the horn is disposed inside the second sub-housing.

10. The cycling helmet speaker according to claim 9, characterized in that: The first sub-shell is provided with a first sound outlet and a second sound outlet. The first sound outlet is located on the inner wall of the first sub-shell, and the second sound outlet is located on the bottom surface of the first sub-shell.

11. The cycling helmet speaker according to claim 9, characterized in that: The inner wall of the first sub-shell is provided with a first mounting post, and the inner wall of the second sub-shell is provided with a second mounting post corresponding to the first mounting post. The first sub-shell and the second sub-shell are connected to each other through the first mounting post and the second mounting post.

12. The cycling helmet speaker according to claim 9, characterized in that: The inner wall of the first sub-shell is provided with a limiting protrusion, and the inner wall of the second sub-shell is provided with a limiting groove that cooperates with the limiting protrusion. The limiting protrusion and the limiting groove are connected.

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