A helmet and brim connection

Abstract

The utility model provides a kind of connecting structure of helmet and hat brim, including the recess being arranged on helmet shell, the connecting hole being arranged in the recess, the hat brim is provided with the convex surface of the recess adaptation, the convex surface is equipped with the combination hole being communicated with connecting hole, the curved surface periphery is provided with clamping slot, the hat brim is further detachably provided with combination piece, the elastic connecting block is sequentially passed combination hole and connecting hole and is in interference fit with the connecting hole, the outer edge of the combination piece is provided with the clamping block of the clamping slot adaptation, elastic connecting block is contracted radially when being pressed, automatically expands and locks after being inserted into connecting hole, realize hat brim tool plug-in, it is convenient to assemble replacement and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of helmet technology, specifically to a connection structure between a helmet and its brim. Background Technology

[0002] Helmets with a visor at the top are a type of personal protective equipment that combines functional protection with practical additional features, and are widely used in cycling. The extended visor structure provides extra protection for the wearer's face, effectively blocking direct sunlight, rain, snow, and impacts from flying debris. With the increasing popularity of outdoor sports, the market demand for helmets with visors continues to grow.

[0003] Utility model patent application CN106974351A discloses a motorcycle helmet equipped with a removable brim. A brim assembly is connected to the top front end of the helmet shell. A positioning member is provided on the helmet shell, and the brim assembly is connected to the positioning member and can swing left and right around the positioning member. Considering that the brim, as a lightweight accessory structure, protrudes from the helmet shell and is relatively easy to be damaged by impacts, the technology exemplified in this application uses bolts or similar methods to bind the brim to the helmet shell, making the existing brim difficult to assemble and disassemble, and inconvenient for maintenance. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a connection structure between a helmet and a brim.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A helmet-brim connection structure includes a groove on the helmet shell, a connecting hole through the groove, a convex surface adapted to the groove, a combination hole communicating with the connecting hole on the convex surface, a slot on the outer periphery of the groove, and a detachable assembly on the brim. An elastic connecting block extends from the assembly towards the combination hole and the connecting hole, the elastic connecting block passing through the combination hole and the connecting hole in sequence and being interference-fitted with the connecting hole. A locking block adapted to the slot is provided on the outer edge of the assembly.

[0006] As a preferred technical solution, the elastic connecting block is a cylindrical body, and the end of the cylindrical body away from the assembly is provided with multiple notches.

[0007] As a preferred technical solution, the end of the elastic connecting block away from the assembly is provided with a flange in the radial direction.

[0008] As a preferred technical solution, multiple expansion and contraction grooves are evenly distributed circumferentially inside the connecting hole.

[0009] As a preferred technical solution, a reinforcing plate is fixedly provided on the inner side wall of the cylinder. The reinforcing plate is cross-shaped, and the edge of the reinforcing plate is integrally connected to the cylinder body. The end of the reinforcing plate is integrally connected to the assembly.

[0010] As a preferred technical solution, a thinning area is provided at the connection between the assembly and the card block, and a reinforcing rib is provided between the card block and the thinning area.

[0011] As a preferred technical solution, the connection between the helmet shell and the brim is provided with a fitting surface, which provides limitation and support between the brim and the helmet shell.

[0012] As a preferred technical solution, a recessed area is provided at the connection between the brim and the assembly, and the recessed area makes the side of the assembly away from the elastic connecting block flush with the outer surface of the brim.

[0013] As a preferred technical solution, the brim has a support plate extending into the helmet shell on the side closest to the helmet shell, and the support plate is adapted to the curved surface of the helmet shell.

[0014] As a preferred technical solution, the brim is provided with at least one groove on the top surface and both sides of the helmet shell, and each groove is provided with the assembly.

[0015] The advantages and beneficial effects of this utility model are as follows: The interference fit between the elastic connecting block of the assembly and the connecting hole of the helmet shell, combined with the locking structure of the locking block and the brim slot, enables simple insertion and removal of the brim. The notch design at the end of the elastic connecting block allows it to contract radially under pressure, and automatically expands after being inserted into the connecting hole to form a mechanical lock, facilitating assembly, replacement, and maintenance. The radial flange at the end of the elastic connecting block enhances the gripping force of the interference fit, and the expansion and contraction groove in the connecting hole provides deformation margin, preventing loosening due to long-term use. The thinned areas of the assembly and the locking block are reinforced with ribs, improving bending resistance while ensuring elasticity. The recessed area makes the outer surface of the assembly flush with the brim, eliminating the risk of scratches caused by the protruding structure, and the mating surface provides three-dimensional support for the brim, dispersing external impact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the assembly of this utility model; Figure 3 This is one of the structural schematic diagrams of the brim of this utility model; Figure 4 This is the second schematic diagram of the brim structure of this utility model; Figure 5 This is a schematic diagram of the structure of the helmet shell of this utility model; Figure 6 This is a schematic diagram of the connection hole structure of this utility model; Figure label: 1-Helmet shell, 2-Groove, 3-Connecting hole, 4-Convex surface, 5-Combination hole, 6-Slot, 7-Assembly, 8-Elastic connecting block, 9-Card block, 10-Flange, 11-Expansion and contraction groove, 12-Reinforcing plate, 13-Thinning area, 14-Reinforcing rib, 15-Matching surface, 16-Sinking area, 17-Support plate. Detailed Implementation

[0017] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0018] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly or implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] Please see Figures 1-6This embodiment provides a connection structure between a helmet and a brim. A groove 2 is provided on the helmet shell 1, and a connecting hole 3 is provided through the groove 2. The brim has a convex surface 4 adapted to the groove 2, and the convex surface 4 has a combination hole 5 communicating with the connecting hole 3. A slot 6 is provided on the outer periphery of the groove 2. The brim is also detachably provided with an assembly 7. An elastic connecting block 8 extends from the assembly 7 towards the combination hole 5 and the connecting hole 3. The elastic connecting block 8 passes through the combination hole 5 and the connecting hole 3 in sequence and is interference-fitted with the connecting hole 3. A locking block 9 adapted to the slot 6 is provided on the outer edge of the assembly 7. When the elastic connecting block 8 passes through the combination hole 5 and the connecting hole 3, it undergoes elastic deformation, generating radial pressure to form an interference fit and lock with the connecting hole 3. At the same time, the locking block 9 is embedded in the slot 6 to provide auxiliary fixation. This allows for quick and detachable installation of the brim and the helmet shell 1, enhances the connection strength, and prevents the brim from loosening or falling off under impact.

[0021] To enhance the deformation adaptability and connection reliability of the elastic connecting block 8, the technical solution provided in this embodiment includes that the elastic connecting block 8 is a cylindrical body, with multiple notches provided at the end of the cylindrical body away from the assembly 7. When the cylindrical body is inserted into the connecting hole 3, the notches allow the cylindrical body to radially contract or expand to adapt to the size changes of the connecting hole 3; this improves the flexibility and uniformity of the interference fit of the elastic connecting block 8, reduces stress concentration, and extends the service life of the component.

[0022] To ensure the locking effect and prevent dislodgement of the elastic connecting block 8 within the connecting hole 3, the technical solution provided in this embodiment includes a flange 10 radially provided at the end of the elastic connecting block 8 away from the assembly 7. After the elastic connecting block 8 is fully inserted, the flange 10 expands radially and abuts against the inner wall of the connecting hole 3 to form a mechanical stop, preventing the brim from accidentally falling off.

[0023] To optimize the expansion and contraction performance of the connecting hole 3 to accommodate the interference fit, the technical solution provided in this embodiment includes a plurality of expansion and contraction grooves 11 evenly distributed circumferentially inside the connecting hole 3. The expansion and contraction grooves 11 allow the wall of the connecting hole 3 to expand or contract radially when the elastic connecting block 8 is inserted, absorbing deformation stress; improving the tolerance of the fit, reducing component wear, and ensuring sealing performance and strength under long-term use.

[0024] To enhance the structural rigidity of the elastic connecting block 8 and prevent deformation failure, the technical solution provided in this embodiment includes a reinforcing plate 12 fixedly installed on the inner side wall of the cylinder. The reinforcing plate 12 is cross-shaped, with its edge integrally connected to the cylinder and its end integrally connected to the assembly 7. The corresponding mechanical actions are: the reinforcing plate 12 provides internal support when the cylinder is under stress, limiting the radial bending of the cylinder; it improves the compressive and torsional strength of the elastic connecting block 8, reduces the risk of breakage, and extends the service life of the assembly 7.

[0025] To achieve a flexible connection between assembly 7 and locking block 9 and avoid stress concentration, the technical solution provided in this embodiment includes a thinning region 13 at the connection between assembly 7 and locking block 9, and a reinforcing rib 14 between locking block 9 and thinning region 13. The corresponding mechanical action is as follows: the thinning region 13 allows locking block 9 to bend slightly when it is engaged in locking slot 6, and the reinforcing rib 14 provides local reinforcement; reducing fatigue damage at the connection point and ensuring that locking block 9 maintains its integrity during repeated disassembly and reassembly.

[0026] To provide precise alignment and additional support between the brim and the helmet shell 1, the technical solution provided in this embodiment includes a fitting surface 15 at the connection between the helmet shell 1 and the brim. The fitting surface 15 provides limiting and support between the brim and the helmet shell 1. When the brim is installed, the fitting surface 15 fits against the curved surface of the helmet shell 1, forming a geometric constraint; preventing the brim from shifting and enhancing the overall structural rigidity and comfort.

[0027] To ensure a smooth transition between the assembly 7 and the outer surface of the brim, enhancing aesthetics, the technical solution provided in this embodiment includes a recessed area 16 at the connection between the brim and the assembly 7. The recessed area 16 aligns the side of the assembly 7 away from the elastic connecting block 8 with the outer surface of the brim. The recessed design of the recessed area 16 accommodates the assembly 7, ensuring its outer surface is flush with the brim, reducing interference from protrusions, and improving the helmet's streamlined appearance and wearing comfort.

[0028] To enhance the fit and support of the brim on the curved surface of the helmet shell 1, the technical solution provided in this embodiment includes a support plate 17 extending from the side of the brim towards the helmet shell 1, the support plate 17 being adapted to the curved surface of the helmet shell 1. During installation, the support plate 17 bends to fit the surface of the helmet shell 1, sharing the load of the brim.

[0029] To improve the uniform fixation of the brim on the top and sides of the helmet, the technical solution provided in this embodiment includes at least one groove 2 on the top and sides of the helmet shell 1, and each groove 2 is correspondingly provided with the assembly 7. Multiple grooves 2 and assemblies 7 provide multi-point connections to ensure balanced force distribution on the brim in all directions.

[0030] The working principle of this utility model is as follows: When installing the brim, the user aligns the assembly 7 with the assembly hole 5 of the brim and applies pressure to insert the elastic connecting block 8 into the connection hole 3 between the assembly hole 5 and the helmet shell 1. At this time, the cylindrical body of the elastic connecting block 8 is radially contracted under pressure due to the multiple notches at the end, and smoothly penetrates through the deformation margin of the expansion and contraction groove 11 in the connection hole 3. After the elastic connecting block 8 is fully inserted into the connection hole 3, its radial flange 10 automatically expands and forms an interference fit with the inner wall of the connection hole 3 for locking. At the same time, the locking block 9 on the outer edge of the assembly 7 is embedded into the brim locking groove 6 due to the flexible bending of the thinned area 13, and the fixing effect is enhanced by the reinforcing rib 14. When removing, applying a reverse pull-out force to make the elastic connecting block 8 contract again can easily separate it. The mechanical action of the entire process realizes tool-free insertion and removal operation. The technical effect is to simplify the assembly, replacement and maintenance of the brim, improve the reliability and durability of the connection, and through the synergistic effect of the mating surface 15, the support plate 17 and the sinking area 16, ensure that the brim is stably attached to the helmet shell 1, disperse external impact and optimize wearing comfort.

[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A connection structure between a helmet and its brim, characterized in that, The helmet shell (1) includes a groove (2) provided on the shell (1), a connecting hole (3) provided through the groove (2), a convex surface (4) adapted to the groove (2) provided on the brim, a combination hole (5) connected to the connecting hole (3) provided on the convex surface (4), a slot (6) provided on the outer periphery of the groove (2), and an assembly (7) detachably provided on the brim. An elastic connecting block (8) extends from the assembly (7) to the combination hole (5) and the connecting hole (3) and passes through the combination hole (5) and the connecting hole (3) in sequence and is press-fitted with the connecting hole (3). A locking block (9) adapted to the slot (6) is provided on the outer edge of the assembly (7).

2. The connection structure between the helmet and the brim according to claim 1, characterized in that, The elastic connecting block (8) is a cylindrical body, and the end of the cylindrical body away from the assembly (7) is provided with multiple notches.

3. The connection structure between the helmet and the brim according to claim 2, characterized in that, The elastic connecting block (8) has a flange (10) radially disposed at the end away from the assembly (7).

4. The connection structure between the helmet and the brim according to claim 3, characterized in that, Multiple expansion and contraction grooves (11) are evenly distributed along the circumference inside the connecting hole (3).

5. The connection structure between the helmet and the brim according to claim 3, characterized in that, A reinforcing plate (12) is fixedly provided on the inner side wall of the cylinder. The reinforcing plate (12) is cross-shaped. The edge of the reinforcing plate (12) is integrally connected to the cylinder. The end of the reinforcing plate (12) is integrally connected to the assembly (7).

6. The connection structure between the helmet and the brim according to claim 3, characterized in that, A thinning area (13) is provided at the connection between the assembly (7) and the card block (9), and a reinforcing rib (14) is provided between the card block (9) and the thinning area (13).

7. The connection structure between the helmet and the brim according to claim 3, characterized in that, The helmet shell (1) is provided with a fitting surface (15) at the connection between the helmet brim and the helmet shell (1), and the fitting surface (15) provides a limit and support between the helmet brim and the helmet shell (1).

8. The connection structure between the helmet and the brim according to claim 3, characterized in that, A recessed area (16) is provided at the connection between the brim and the assembly (7), and the recessed area (16) makes the side of the assembly (7) away from the elastic connecting block (8) flush with the outer surface of the brim.

9. The connection structure between the helmet and the brim according to claim 3, characterized in that, The brim has a support plate (17) extending toward the helmet shell (1) on the side near the helmet shell (1), and the support plate (17) is adapted to the curved surface of the helmet shell (1).

10. The connection structure between the helmet and the brim according to claim 3, characterized in that, The brim is provided with at least one groove (2) on the top surface and both sides of the helmet shell (1), and each groove (2) is provided with the assembly (7).

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