A safety helmet with a cellular foam lining

Abstract

The utility model discloses a safety helmet with honeycomb foam lining, including cap shell, bubble shell fixing spare, buffer layer one and buffer layer two, foam lining subassembly is located cap shell inside, and foam lining subassembly includes bubble shell fixing spare, buffer layer one and buffer layer two. The utility model discloses compared with prior art's advantage lies in: the utility model discloses through setting up buffer layer one and buffer layer two of honeycomb structure, makes that the density of lining middle is low, and the density of all around is high, has increased the recoil of honeycomb structure lining after stress, when the outside force is received, safety helmet will through buffer layer one and buffer layer two to the certain force of outside absorption, and then reduce the damage of outside force to human head, and the safety helmet lining of the utility model still has good air permeability, has reduced the weight of lining, makes safety helmet wear more comfortable, more light, ventilative, has improved the impact resistance of safety helmet greatly, has improved the wearer wearing comfort degree simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of safety helmet technology, specifically a safety helmet with a honeycomb foam lining. Background Technology

[0002] Safety helmets are specifically designed to protect the human head, maximizing protection against injury in the event of a head impact. While the structural requirements vary depending on the hazardous location, all helmets consist of a shell and an inner liner. The shell is typically made of a rigid material, and the liner is installed inside the shell, fitting snugly against the head. The shell is hemispherical, sturdy, smooth, and possesses a degree of elasticity; the impact and penetrating kinetic energy of the striking object is primarily absorbed by the shell.

[0003] Patent document CN221653705U discloses a standard-wearing safety helmet, including a helmet body and a chin strap. The helmet body includes a shell and an inner liner installed within the shell. The helmet also includes an elastic element installed within the helmet body, which supports the helmet on the top of the head. When the chin strap is fastened, the elastic element is pressed into the helmet body under the pressure of the head for proper helmet wearing. When the chin strap is not fastened, the elastic element cannot be pressed into the helmet body for proper helmet wearing. This utility model makes a simple improvement on the existing structure. When the chin strap is not fastened, the elastic element prevents the helmet from being fully put on the head. Therefore, when wearing this helmet, the user must fasten the chin strap to prevent the helmet from slipping off, thus improving the helmet's safety performance. However, the existing technology still has shortcomings. In the case of a large impact, the inner lining of the safety helmet in the existing technology does not provide enough elasticity. The deformation is insufficient when it is impacted, the shock absorption performance is weak, and the recoil protection is poor. As a result, after the safety helmet is subjected to external force, it cannot form a rebound effect on the force, and the external force will directly act on the head of the construction worker, resulting in poor protection efficiency.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide a safety helmet with a honeycomb foam liner.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a safety helmet with a honeycomb foam liner, comprising a helmet shell, characterized in that: A foam liner assembly is disposed inside the cap shell. The foam liner assembly includes a foam shell fixing component, a first buffer layer and a second buffer layer, which are interlocked and connected. Both the first buffer layer and the second buffer layer are configured with a honeycomb structure.

[0007] Furthermore, positioning tubes are provided at both ends of the top of the inner wall of the cap.

[0008] Furthermore, there are two blister packers, which are located at both ends inside the cap. Each end of one side of the blister packer is fixedly connected to a fixing sleeve, and a fixing hole is provided in the middle of the other side of the blister packer. The fixing hole is used in conjunction with the positioning tube.

[0009] Furthermore, each of the top two ends of the buffer layer is provided with a mounting groove, which is used in conjunction with the bubble shell fixing component.

[0010] Furthermore, the top two ends of the second buffer layer are provided with mounting grooves, which are used in conjunction with the bubble shell fixing component. The bottom two ends of the inner wall of the second mounting groove are provided with fixing grooves, which are used in conjunction with the fixing sleeve.

[0011] The advantages of this invention compared to existing technologies are as follows: This invention utilizes a foam liner assembly with honeycomb-structured buffer layers one and two. Buffer layer one has a low density, while buffer layer two has a high density, resulting in a lower density in the center and a higher density around the edges. This increases the recoil force of the honeycomb liner under stress. Simultaneously, the honeycomb design of buffer layers one and two conforms to the head and upper sides, enhancing side protection. When subjected to external force, the helmet absorbs a certain amount of the force through buffer layers one and two, reducing damage to the head and improving protection. Furthermore, the helmet liner of this invention has good breathability, reducing its weight and making the helmet more comfortable, lightweight, and breathable to wear. This significantly improves the helmet's impact resistance and enhances wearer comfort, making it highly practical. Attached Figure Description

[0012] Figure 1 This is a perspective view of a safety helmet with a honeycomb foam lining according to the present invention.

[0013] Figure 2 This is an exploded structural diagram of a safety helmet with a honeycomb foam lining according to this utility model.

[0014] Figure 3This is a schematic diagram of the structure of a safety helmet shell with a honeycomb foam lining according to this utility model.

[0015] Figure 4 This is a rear view of the helmet shell of a safety helmet with a honeycomb foam lining according to this utility model.

[0016] Figure 5 This is a front view of the shell of a safety helmet with a honeycomb foam lining according to this utility model.

[0017] Figure 6 This utility model relates to a safety helmet with a honeycomb foam lining. Figure 5 Schematic diagram of the cross section at point AA.

[0018] Figure 7 This is a schematic diagram of the structure of the buffer layer of a safety helmet with a honeycomb foam liner according to this utility model.

[0019] Figure 8 This is a front view of the buffer layer of a safety helmet with a honeycomb foam liner according to this utility model.

[0020] Figure 9 This utility model relates to a safety helmet with a honeycomb foam lining. Figure 8 Schematic diagram of the cross section at point AA.

[0021] Figure 10 This is a schematic diagram of the second buffer layer of a safety helmet with a honeycomb foam liner according to the present invention.

[0022] Figure 11 This is a front view of the second buffer layer of a safety helmet with a honeycomb foam liner according to this utility model.

[0023] Figure 12 This utility model relates to a safety helmet with a honeycomb foam lining. Figure 11 Schematic diagram of the cross section at point AA.

[0024] Figure 13 This is a schematic diagram of the structure of a bubble shell fixing component for a safety helmet with a honeycomb foam lining according to this utility model.

[0025] The diagram shows: 1. Cap shell; 11. Positioning tube; 2. Bubble shell fastener; 21. Fixing sleeve; 22. Fixing hole; 3. Buffer layer one; 31. Mounting groove one; 4. Buffer layer two; 41. Mounting groove two; 42. Fixing groove. Detailed Implementation

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] like Figures 1 to 13 As shown, this embodiment proposes a safety helmet with a honeycomb foam liner, including a helmet shell 1, with a foam liner assembly disposed inside the helmet shell 1. The foam liner assembly includes a foam shell fixing member 2, a first buffer layer 3, and a second buffer layer 4, which are snap-fitted together. Both the first buffer layer 3 and the second buffer layer 4 are honeycomb structures, allowing the foam liner assembly to fit snugly against the head and upper side using a honeycomb design, increasing side protection. The first buffer layer 3 and the second buffer layer 4 are made of EPS material, which is existing technology. Its core advantage lies in its excellent energy absorption and cushioning capabilities. It absorbs impact energy through compression deformation and disperses the force to the entire helmet, effectively reducing the local impact force on the head. At the same time, EPS material is very lightweight, which can significantly reduce the burden on the head and neck during wear and improve the comfort of wearing it for a long time.

[0029] It should be noted that the foam liner component has a foam shell wall thickness of 8mm-10mm and a honeycomb opening ratio of 30%-40%. This is because a fully enclosed design does not deform sufficiently when subjected to impact, resulting in weak impact absorption performance; if the opening ratio is too high, the deformation is too large when subjected to impact, weakening the impact absorption performance and failing to protect the head.

[0030] Positioning tubes 11 are provided at both ends of the top of the inner wall of the cap shell 1. There are two bubble shell fasteners 2, which are located at both ends inside the cap shell 1. Both ends of one side of the bubble shell fastener 2 are fixedly connected to the fixing sleeves 21. A fixing hole 22 is opened in the middle of the other side of the bubble shell fastener 2. The fixing hole 22 is used in conjunction with the positioning tubes 11. Both ends of the top of the first buffer layer 3 are provided with the first mounting groove 31. The first mounting groove 31 is used in conjunction with the bubble shell fastener 2. Both ends of the top of the second buffer layer 4 are provided with the second mounting groove 41. The second mounting groove 41 is used in conjunction with the bubble shell fastener 2. Both ends of the bottom of the inner wall of the second mounting groove 41 are provided with the fixing groove 42. The fixing groove 42 is used in conjunction with the fixing sleeves 21. Thus, the first buffer layer 3 and the second buffer layer 4 are easily installed and fixed to the cap shell 1 through the bubble shell fasteners 2. The first buffer layer 3 has a low density and the second buffer layer 4 has a high density, which makes the honeycomb structure density in the middle part of the lining lower and the honeycomb structure density at the edges higher, increasing the recoil force of the honeycomb structure lining after being stressed.

[0031] Furthermore, in existing safety helmets with inner lining designs, the energy received by the human head ranges from 3.5kN to 4.5kN. However, tests have shown that the safety helmet of this invention, through its foam inner lining component, achieves the performance requirement that the energy received by the human head after a 5kg drop from a height of 1.0m is ≤4.9kN after the helmet absorbs the impact force. In actual use, through structural optimization and energy dispersion, the impact force received by the human head is usually controlled between 2.0kN and 3.5kN, which is far lower than the national standard for the energy received by the human head, significantly improving safety redundancy.

[0032] In practical implementation, this invention utilizes a honeycomb structure with buffer layers 3 and 4. Buffer layer 3 has a low density, while buffer layer 4 has a high density, resulting in a lower honeycomb structure density in the middle of the inner lining and a higher density at the perimeter. This increases the recoil force of the honeycomb lining under stress. Simultaneously, the honeycomb design of buffer layers 3 and 4 conforms to the head and upper sides, enhancing lateral protection. When subjected to external force, the helmet absorbs a certain amount of the force through buffer layers 3 and 4, reducing damage to the head and thus protecting construction workers. Furthermore, the helmet lining of this invention has good breathability, reducing its weight and making it more comfortable, lightweight, and breathable to wear. This significantly improves the helmet's impact resistance and wearer comfort, making it highly practical.

[0033] All content not described in detail in this specification is prior art known to those skilled in the art, and the accompanying drawings are structural schematic diagrams used to supplement the text of the specification.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety helmet with a honeycomb foam liner, comprising a helmet shell (1), characterized in that: The foam liner assembly is located inside the cap shell (1). The foam liner assembly includes a foam shell fixing member (2), a first buffer layer (3) and a second buffer layer (4). The first buffer layer (3) and the second buffer layer (4) are connected by a snap-fit ​​connection. The first buffer layer (3) and the second buffer layer (4) are both honeycomb structures.

2. The safety helmet with a honeycomb foam liner according to claim 1, characterized in that: The cap shell (1) has positioning tubes (11) at both ends of the top of the inner wall.

3. The safety helmet with a honeycomb foam liner according to claim 2, characterized in that: There are two blister packers (2). The blister packers (2) are located at both ends inside the cap (1). Both ends of one side of the blister packer (2) are fixedly connected to a fixing sleeve (21). A fixing hole (22) is opened in the middle of the other side of the blister packer (2). The fixing hole (22) is used in conjunction with the positioning tube (11).

4. The safety helmet with a honeycomb foam liner according to claim 1, characterized in that: The top two ends of the buffer layer (3) are provided with mounting grooves (31), which are used in conjunction with the bubble shell fixing component (2).

5. The safety helmet with a honeycomb foam liner according to claim 2, characterized in that: The top two ends of the buffer layer (4) are provided with mounting grooves (41), which are used in conjunction with the bubble shell fixing component (2). The bottom two ends of the inner wall of the mounting groove (41) are provided with fixing grooves (42), which are used in conjunction with the fixing sleeve (21).

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