Light half helmet

Abstract

The utility model discloses a light half helmet which comprises a helmet shell, a lens and a buffer layer, the lens is hinged to the helmet shell, the buffer layer is arranged in the helmet shell, and a buffer frame is further arranged between the buffer layer and the helmet shell. The grooves and the holes are formed in the surface of the buffer frame, and the buffer frame is arranged to be of a split structure, so that the buffer frame can be broken after being subjected to acting force, certain kinetic energy is absorbed, and then the safety of the light half helmet is improved; in order to further improve the energy absorption property of the buffer frame, buffer pieces, salient points and other structures can be arranged in the buffer frame, the buffer pieces can be further provided with frosted lines through the salient points, and when the buffer pieces are impacted, the buffer pieces can rub each other to further improve the efficiency of converting kinetic energy into heat energy.

Description

Technical Field

[0001] The utility model relates to the field of helmets, and particularly relates to a lightweight half-helmet with a buffer layer. Background Art

[0002] The half-helmet is the lightest helmet. Due to traffic regulations and the sultry discomfort of wearing a full-face helmet, people often choose a lightweight half-helmet as a match for cycling vehicles in daily life. However, the structure of the half-helmet cannot provide effective protection for parts such as the user's ears, and is usually only suitable for short-distance commuting on urban roads or medium- and low-speed leisure cycling. The structure of the half-helmet in the prior art is set to be lightweight, but the safety protection effect is very limited. Only relying on the buffer layer formed by foam plastic to absorb the kinetic energy brought by the impact is not enough to provide good protection for the head. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems, provide a half-helmet structure with lighter quality, provide relatively comprehensive protection for the ears of the wearer, and effectively reduce secondary injuries caused by the deformation of the helmet when the wearer encounters a car accident.

[0004] To achieve the above purpose, the technical solution provided by the utility model is as follows: a lightweight half-helmet, including a helmet shell, a lens, and a buffer layer. The lens is hinged to the helmet shell, and the buffer layer is arranged inside the helmet shell. It is characterized in that: a buffer frame is further arranged between the buffer layer and the helmet shell, and the buffer frame is a hollow structure composed of two layers of plastics.

[0005] To provide protection for the ears of the wearer, the technical solution provided by the utility model includes that the helmet shell, the buffer frame, and the buffer layer extend from the top of the head to the ears.

[0006] To improve the safety performance of the lightweight half-helmet, the technical solution provided by the utility model includes opening grooves on the buffer frame.

[0007] Further, holes are opened on the buffer frame.

[0008] Further, the grooves or holes are arranged in a radial pattern.

[0009] Further, the buffer frame adopts a split structure, and the split structure includes an upper buffer frame and a lower buffer frame.

[0010] To enable the lightweight half-helmet to be efficiently ventilated, ventilation openings are opened on the helmet shell, and a ventilation opening switch connected by a sliding groove is further arranged on the surface of the helmet shell.

[0011] Further, the grooves on the buffer frame are communicated with the ventilation openings.

[0012] To provide better protection measures, the technical solution provided by the present utility model includes that the buffer frame is a hollow structure inside.

[0013] Further, the hollow structure is provided with buffer sheets arranged obliquely.

[0014] Further, the surface of the buffer sheet is provided with matte patterns.

[0015] Further, the surface of the buffer sheet is also provided with convex points.

[0016] Further, the surface of the convex points of the buffer sheet is provided with matte patterns.

[0017] The advantages and beneficial effects of the present utility model are as follows: By arranging a buffer frame outside the buffer layer inside the half-helmet, and by providing grooves, holes, and a split structure on the surface of the buffer frame, the stress concentration points are increased. When the wearer has a safety accident during cycling, the buffer frame structure inside the half-helmet will deform when subjected to a certain force, absorb a certain amount of kinetic energy, and reduce the injury received by the wearer. In addition, due to the deformation of the buffer frame, the internal structure of the buffer frame will break, rub, etc., and the kinetic energy brought by the accident will be absorbed and converted into heat, reducing the injury received by the wearer. At the same time, the deformation of the buffer frame makes a certain space inside the half-helmet, reducing the secondary injury caused to the wearer due to the impact deformation of the half-helmet; at the same time, the grooves, holes, etc. opened on the surface of the buffer frame can also be used as air ducts, further improving the ventilation effect of the lightweight half-helmet and improving the comfort. Description of the Drawings

[0018] Figure 1 is a schematic diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of Embodiment 1 of the present utility model;

[0020] Figure 3 is a side view of the buffer frame of Embodiment 2 of the present utility model;

[0021] Figure 4 is a schematic sectional structure diagram of the buffer frame of Embodiment 2 of the present utility model;

[0022] Figure 5 is a schematic sectional structure diagram of the buffer frame of Embodiment 3 of the present utility model;

[0023] Reference Signs:

[0024] 1 - helmet shell, 11 - ventilation opening, 2 - lens, 3 - buffer layer, 4 - buffer frame, 41 - upper buffer frame, 42 - lower buffer frame, 43 - groove, 44 - hole, 45 - buffer sheet, 46 - convex point. Detailed Embodiments

[0025] The following will further describe the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model. Embodiment 1

[0026] As Figures 1 - 2 , a lightweight half-helmet includes a helmet shell 1, a lens 2, and a buffer layer 3. The lens 2 is hinged to the helmet shell 1. The buffer layer 3 is arranged inside the helmet shell 1. Ventilation openings 11 are also arranged on the surface of the helmet shell 1. A buffer frame 4 is arranged between the buffer layer 3 and the inside of the helmet shell. The buffer frame 4 is divided into an upper buffer frame 41 and a lower buffer frame 42. Grooves 43 and... are formed on the surface of the buffer frame 4. Two of the grooves 43 communicate with the ventilation openings 11. The inside of the buffer frame 4 is of a hollow structure.

[0027] The buffer frame 4 is set as a split structure of an upper buffer frame 41 and a lower buffer frame 42. On the one hand, it is beneficial to the forming and processing of the buffer frame 4. On the other hand, the reason is that the combined part between the split structures and the grooves 43 and holes 44 formed on the surface of the buffer frame 4 can form stress concentration points when the helmet is impacted by forces such as impacts. Stress concentration will promote the rupture of the buffer frame 4. The buffer frame 4 can absorb a part of the kinetic energy and convert it into heat energy and dissipate it by means of self-rupture or even crushing, so as to be beneficial to the protection of the wearer by the half-helmet and further achieve the purpose of structural breakage. Connecting the grooves 43 with the ventilation openings 11, the grooves 43 can also be used as air ducts, improving the comfort of the half-helmet. The inside of the buffer frame 4 is of a hollow structure. When an external force acts, the buffer frame 4 ruptures, and the internal hollow structure can bring a certain activity space for the wearer, avoiding secondary injury to the wearer's head due to extrusion caused by the deformation of the helmet. Embodiment 2

[0028] As Figures 3 - 4 , a lightweight half-helmet includes a helmet shell 1, a lens 2, and a buffer layer 3. The lens 2 is hinged to the helmet shell 1. The buffer layer 3 is arranged inside the helmet shell 1. Ventilation openings 11 are also arranged on the surface of the helmet shell 1. A buffer frame 4 is arranged between the buffer layer 3 and the inside of the helmet shell. The buffer frame 4 is divided into an upper buffer frame 41 and a lower buffer frame 42. Radially arranged holes 44 are formed on the surface of the buffer frame 4. Buffer sheets 45 are obliquely arranged inside the buffer frame 4, and the buffer sheets 45 are provided with evenly distributed convex points 46 on the surface.

[0029] Radiating holes 44 are arranged on the surface of the buffer frame 45, which can play a certain role in controlling the fragmentation mode of the buffer frame 4, avoiding the buffer frame 4 from being fragmented along the groove 43 into sharp blocks and piercing the buffer layer 3 to cause harm to the wearer. At the same time, it should be noted that the grooves in the first embodiment can also be arranged in a radial pattern. However, it is difficult to completely avoid the problem of sharp blocks generated after the fragmentation of the buffer frame 4 by the radial arrangement. Through the setting of the buffer sheet 45, the structural strength of the hollow structure buffer frame 4 can be improved to a certain extent. At the same time, the buffer sheet 45 is inclined. When an external force acts on the buffer frame 4, the connection between the buffer sheet 45 and the buffer frame 4 breaks, the inclination angle becomes smaller, and friction is generated between the buffer sheets 45, converting part of the kinetic energy into heat energy. Friction can also be generated between the bumps 46 when an external force acts, and the setting of the bumps 46 also increases the friction area, further converting the absorbed kinetic energy into heat energy. Embodiment 3

[0030] As Figure 5 , different from the second embodiment: the surfaces of the buffer sheet 45 and the bumps 46 are provided with frosted patterns to form a rough plane.

[0031] By setting the surfaces of the buffer sheet 45 and the bumps 46 to be rough surfaces, the friction is more intense when an external force acts, which can further improve the kinetic energy conversion efficiency and thus enhance the protection of the wearer.

[0032] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A lightweight half-helmet, comprising a helmet shell, a lens, and a buffer layer. The lens is hinged to the helmet shell, and the buffer layer is arranged inside the helmet shell. It is characterized in that: A buffer frame is further arranged between the buffer layer and the helmet shell. The buffer frame is a hollow structure composed of two layers of plastics. Grooves and / or holes are formed on the surface of the buffer frame. The buffer frame is arranged as a split structure of an upper buffer frame and a lower buffer frame.

2. The lightweight half-helmet according to claim 1, characterized in that: The helmet shell, the buffer frame, and the buffer layer extend from the top of the head to the ears.

3. The lightweight half-helmet according to claim 2, characterized in that: The grooves or holes are arranged radially.

4. The lightweight half-helmet according to claim 1, characterized in that: Buffer sheets are obliquely arranged inside the buffer frame.

5. The lightweight half-helmet according to claim 4, wherein: The surface of the buffer sheet is provided with frosted patterns.

6. The lightweight half-helmet according to any one of claims 4 or 5, characterized in that: Convex points are further arranged on the surface of the buffer sheet.

7. The lightweight half-helmet according to claim 6, characterized in that: The surface of the convex points is provided with frosted patterns.

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