Multi-layer cushioning shock-absorbing safety helmet

Abstract

This invention provides a multi-layered cushioning and shock-absorbing safety helmet, comprising an outer shell with an open wearing cavity; multiple connection points on the inner wall of the wearing cavity near the open; the connection points are spaced apart; the points of the connection points enclose a base circle; a movable liner is disposed within the wearing cavity; the movable liner is slidably connected to each connection point, and the sliding direction is along the circumference of the base circle; a cushioning liner is disposed between the outer shell and the movable liner, and cushions and absorbs force when the outer shell is subjected to vertical impact; and a chin strap is connected to the movable liner. The multi-layered cushioning and shock-absorbing safety helmet provided by this invention provides basic protection through the outer shell, and the connection points on the inner wall of the wearing cavity are slidably connected to the movable liner, allowing the movable liner to slide circumferentially along the base circle when subjected to oblique or lateral impact, preventing the head from shaking or turning violently due to torsional forces. The cushioning liner plays a role in cushioning and absorbing force during vertical impact, and the chin strap secures the head.

Description

Technical Field

[0001] This utility model belongs to the field of safety helmet technology, specifically relating to a multi-layer cushioning and shock-absorbing safety helmet. Background Technology

[0002] A safety helmet is a hat designed to protect the head from injuries caused by falling objects and other specific factors. A safety helmet generally consists of a shell, liner, and chin strap. The shell is the main component, typically an elliptical or hemispherical thin-shell structure, and can be made in various styles such as smooth top, top rib, with brim, or brimless. It is used to resist impact and puncture, separating falling objects from the wearer. The liner is the collective term for the parts inside the shell that directly contact the wearer's head. It consists of the headband, top strap, protective straps, support straps, sweatband, padding, and tethering cord. Its function is to cushion and reduce the force transmitted to the head upon impact. The chin strap is the strap that rests on the chin, consisting of a strap and a locking clip, and is used to secure the helmet and prevent it from slipping off.

[0003] In existing technologies, the cushioning and shock absorption function of safety helmets mainly relies on the gap between the helmet shell and the liner. When an object impacts the helmet shell, the gap allows the shell to deform under stress first, preventing the impact force from being directly transmitted to the head. The initial impact energy is reduced through spatial buffering. However, when subjected to oblique or lateral impacts, the safety helmet may generate a certain torsional force, causing the head to sway or deflect relatively within the gap. The impact force cannot be evenly distributed, and the cervical spine may even bear additional shear or torsional forces due to inertia, resulting in poor safety and practicality. Utility Model Content

[0004] This utility model provides a multi-layered cushioning and shock-absorbing safety helmet, which aims to solve the problems of poor safety and practicality of existing safety helmets when subjected to oblique or lateral impacts.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a multi-layered cushioning and shock-absorbing safety helmet, comprising:

[0006] The outer shell has an open wearing cavity; the inner wall of the wearing cavity near the open has multiple connection positions; the connection positions are spaced apart; the points where the connection positions are located enclose a base circle;

[0007] A movable cap liner is disposed within the wearing cavity and has a cap liner cavity adapted to the head; the movable cap liner is slidably connected to each of the connecting positions, and the sliding direction is along the circumference of the base circle;

[0008] A cushioning liner is disposed between the outer shell and the movable cap liner to cushion and absorb force when the outer shell is subjected to a vertical impact.

[0009] A chin strap, attached to the movable cap liner, is used to place the movable cap liner over the worker's head.

[0010] In one possible implementation, the outer casing includes:

[0011] The protective housing has the wearing cavity;

[0012] A buffer layer is applied to the inner wall of the wearing cavity;

[0013] A connecting cap liner is provided inside the buffer layer. The connecting cap liner has multiple detachably connected connecting blocks. One end of each connecting block is connected to the connecting cap liner, and the other end of each connecting block extends horizontally toward the wearing cavity. Each connecting block is located on the same horizontal plane, and each connecting block is the connecting position.

[0014] In one possible implementation, the movable cap liner includes:

[0015] The main body of the cap liner is disposed inside the connecting cap liner and is slidably connected to each of the connecting blocks of the connecting cap liner. The main body of the cap liner is provided with a plurality of sliding grooves, each of the sliding grooves being provided in a one-to-one correspondence with each of the connecting blocks, and each of the sliding grooves being provided with a long through hole for the corresponding connecting block to slide.

[0016] Multiple elastic reset units are provided, and each elastic reset unit is arranged in a one-to-one correspondence with each slide groove. Each elastic reset unit is disposed in the corresponding slide groove, and each elastic reset unit is used to ensure that the corresponding connecting block is always located in the middle position of the slide groove.

[0017] In one possible implementation, each of the elastic reset units includes two elastic reset pieces, one end of each elastic reset piece is connected to the corresponding slide groove, and the other end of each elastic reset piece is connected to the corresponding connecting block. The two elastic reset pieces are used to make the connecting block tend to move toward the middle position of the slide groove.

[0018] In one possible implementation, the elastic reset piece is made of engineering plastic.

[0019] In one possible implementation, the cushioning liner includes a plurality of cushioning rings whose dimensions increase sequentially along the orientation of the wearing cavity opening; adjacent cushioning rings are spaced apart; each cushioning ring is respectively connected to the connecting cap liner and the cap liner body.

[0020] In one possible implementation, the buffer layer is polyurethane.

[0021] In one possible implementation, the protective housing is provided with reinforcing beams.

[0022] In one possible implementation, the protective housing is provided with mounting slots.

[0023] In one possible implementation, the protective housing is provided with a magnetic adsorption seat.

[0024] In this implementation, compared to existing technologies, the outer shell provides basic protection, while the connecting point on the inner wall of the wearing cavity is slidably connected to the movable liner. This allows the movable liner to slide along the base circumference when subjected to oblique or lateral impacts, thereby changing the direction of force transmission and preventing violent shaking or deflection of the head due to torsional forces, thus distributing the impact force more evenly. The cushioning liner plays a role in buffering and dissipating force during vertical impacts, and the chin strap secures the head, ensuring that the helmet can be worn stably under various impact conditions, improving the helmet's protective performance and practicality. Attached Figure Description

[0025] Figure 1 A top view of the multi-layer buffered vibration-damping safety helmet provided in this embodiment of the utility model;

[0026] Figure 2 A side view of the multi-layer cushioning and vibration-damping safety helmet provided for an embodiment of this utility model;

[0027] Figure 3 A cross-sectional structural schematic diagram of a multi-layer buffered vibration-damping safety helmet provided for an embodiment of this utility model;

[0028] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0029] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0030] Figure 6 A top view of the multi-layer buffered vibration-damping safety helmet provided in this embodiment of the utility model;

[0031] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0032] Explanation of reference numerals in the attached figures:

[0033] 10. Outer shell; 11. Protective shell; 12. Buffer layer; 13. Connecting cap liner; 20. Movable cap liner; 21. Cap liner body; 22. Elastic reset unit; 221. Elastic reset piece; 30. Buffer liner; 31. Buffer ring; 40. Chin strap. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", and "tail" 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 device or element referred to 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.

[0036] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of a structure. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0038] Please refer to the following: Figures 1 to 7 The multi-layered cushioning and vibration-damping safety helmet provided by this utility model will now be described. The multi-layered cushioning and vibration-damping safety helmet includes an outer shell 10, a movable cap liner 20, a cushioning inner liner 30, and a chin strap 40. The outer shell 10 has an open wearing cavity. Multiple connection points are located on the inner wall of the wearing cavity near the open end. These connection points are spaced apart and form a base circle. The movable cap liner 20 is disposed within the wearing cavity and has a cap liner cavity adapted to the head. The movable cap liner 20 is slidably connected to each connection point, and the sliding direction is along the circumference of the base circle. The cushioning inner liner 30 is disposed between the outer shell 10 and the movable cap liner 20, and is used to cushion and dissipate force when the outer shell 10 is subjected to a vertical impact. The chin strap 40 is connected to the movable cap liner 20 and is used to wear the movable cap liner 20 on the worker's head.

[0039] The multi-layered cushioning and shock-absorbing safety helmet provided in this embodiment, compared with the prior art, provides basic protection through the outer shell 10. The connection point of the inner wall of the wearing cavity is slidably connected to the movable liner 20, allowing the movable liner 20 to slide along the base circumference when subjected to oblique or lateral impacts, thereby changing the direction of force transmission and preventing the head from shaking or turning violently due to torsional forces, so that the impact force can be distributed more evenly. The cushioning liner 30 plays a role in cushioning and dissipating force during vertical impacts, and the chin strap 40 fixes the head, ensuring that the safety helmet can be worn stably under various impact conditions, improving the protective performance of the safety helmet and making it practical.

[0040] The base circle is a virtual circular concept based on structural design. Specifically, the inner wall of the wearing cavity of the outer shell 10 near the opening has multiple spaced connection points, and the circle formed by these connection points is the base circle. It provides a trajectory reference for the sliding of the movable cap liner 20, allowing the movable cap liner 20 to slide along the circumference of the base circle when it is slidably connected to each connection point.

[0041] In some embodiments, the outer casing 10 may be adopted as follows: Figures 1 to 3 , Figure 6 The structure shown. See also Figures 1 to 3 , Figure 6 The outer shell 10 includes a protective shell 11, a buffer layer 12, and a connecting cap liner 13. The protective shell 11 has a wearing cavity. The buffer layer 12 covers the inner wall of the wearing cavity. The connecting cap liner 13 covers the buffer layer 12 and has multiple detachably connected connecting blocks. One end of each connecting block is connected to the connecting cap liner 13, and the other end of each connecting block extends horizontally into the wearing cavity. All connecting blocks are located on the same horizontal plane, and each connecting block is a connection position.

[0042] The protective shell 11, as the outermost layer, directly withstands external impacts, providing initial protection. The buffer layer 12 absorbs some energy through its elastic deformation when the protective shell 11 is impacted, reducing the impact force transmitted to the interior. The connecting block on the connecting cap liner 13 serves as the connection point for the movable cap liner 20. Its detachable connection facilitates replacement and maintenance, extending the lifespan of the safety helmet. Simultaneously, the horizontally extending connecting block, positioned on the same horizontal plane, ensures the stability and consistency of the sliding motion of the movable cap liner 20. During long-term use, if the connecting block is damaged, it can be directly removed and replaced without replacing the entire safety helmet, reducing operating costs.

[0043] In some embodiments, the aforementioned movable cap liner 20 may be adopted as follows: Figures 1 to 7 The structure shown. See also Figures 1 to 7The movable cap liner 20 includes a cap liner body 21 and elastic reset units 22. The cap liner body 21 is disposed inside the connecting cap liner 13 and is slidably connected to each connecting block of the connecting cap liner 13. The cap liner body 21 has multiple sliding grooves, each corresponding to one of the connecting blocks. Each sliding groove has a through hole for the corresponding connecting block to slide. Multiple elastic reset units 22 are provided, each corresponding to one of the sliding grooves. Each elastic reset unit 22 is disposed in its corresponding sliding groove and is used to keep the corresponding connecting block always in the middle position of the sliding groove.

[0044] The sliding connection between the helmet liner body 21 and the connecting block, achieved through the cooperation of the sliding groove and the elongated through hole, enables the flexible sliding of the movable helmet liner 20. The elastic reset unit 22 ensures that the connecting block remains in the center of the sliding groove. When the movable helmet liner 20 slides due to oblique or lateral forces, the elastic reset unit 22 provides a restoring force, returning the movable helmet liner 20 to its initial position, ensuring the stability and reliability of the helmet under multiple impacts. This design not only effectively disperses impact force but also quickly restores the helmet to its normal state after an impact, providing continuous protection against subsequent potential impacts.

[0045] The elastic reset unit 22 can be a helical spring, which is placed inside the slide groove, with one end fixed to the slide groove wall and the other end connected to the connecting block. The elasticity of the helical spring is used to reset the connecting block. The shape of the slide groove can be changed to an arc-shaped groove, which can better guide the sliding trajectory of the connecting block and make the sliding of the movable cap liner 20 more stable.

[0046] In some embodiments, the elastic reset unit 22 may employ, as follows: Figures 5 to 7 The structure shown. See also Figures 5 to 7 Each elastic reset unit 22 includes two elastic reset pieces 221. One end of each elastic reset piece 221 is connected to the corresponding slide groove, and the other end of each elastic reset piece 221 is connected to the corresponding connecting block. The two elastic reset pieces 221 are used to make the connecting block tend to always move towards the middle position of the slide groove.

[0047] Two elastic reset pieces 221 are connected to the slide groove and the connecting block respectively, providing reset force from two directions, making the trend of the connecting block moving towards the center of the slide groove more stable and reliable. The elastic reset pieces 221 have good elasticity and strength, can maintain stable performance after multiple deformations, are not easily damaged, and have low cost, making them suitable for mass production applications.

[0048] After repeated impacts cause the movable cap liner 20 to slide, the two elastic reset pieces 221 work together to quickly pull the connecting block back to the middle position of the slide groove, ensuring the normal function of the movable cap liner 20.

[0049] In some embodiments, the elastic reset piece 221 may be adopted as follows: Figures 5 to 7 The structure shown. See also Figures 5 to 7 The elastic reset piece 221 is made of engineering plastic.

[0050] Engineering plastics possess a variety of excellent properties, such as good mechanical properties and corrosion resistance. The elastic restoring plate 221 made of engineering plastic can meet the elasticity and strength requirements of safety helmets during use, and is easy to process and mold, allowing it to be manufactured into various shapes and sizes according to different design needs. At the same time, engineering plastics are relatively inexpensive, which can reduce production costs while ensuring the performance of the safety helmet.

[0051] In some embodiments, the aforementioned cushioning liner 30 may be adopted as follows: Figure 3 , Figure 4 The structure shown. See also Figure 3 , Figure 4 The cushioning liner 30 includes multiple cushioning rings 31 whose dimensions increase sequentially along the orientation of the wearing cavity opening. Adjacent cushioning rings 31 are spaced apart. Each cushioning ring 31 is connected to the cap liner 13 and the cap liner body 21.

[0052] Multiple buffer rings 31 of progressively increasing size are spaced apart. This structural design forms a multi-layered buffer structure when the outer shell 10 is subjected to a vertical impact. The buffer rings 31 of different sizes deform sequentially according to the magnitude of the impact force, gradually absorbing the impact energy. Compared to a single buffer structure, this design more effectively buffers and dissipates force. Each buffer ring 31 is connected to the cap liner 13 and the cap liner body 21, ensuring the connection stability between the buffer liner 30 and the outer shell 10 and the movable cap liner 20, resulting in excellent buffering performance.

[0053] When subjected to a large vertical impact, the larger buffer ring 31 deforms first, absorbing most of the energy. Then, the smaller buffer ring 31 continues to deform, further absorbing the remaining energy, thus minimizing the impact force transmitted to the head.

[0054] In some embodiments, the buffer layer 12 may be as follows: Figure 3 , Figure 4 The structure shown. See also Figure 3 , Figure 4 The buffer layer 12 is made of polyurethane.

[0055] Polyurethane is a high-performance cushioning material with high elasticity, wear resistance, and aging resistance. As the cushioning layer 12, polyurethane can quickly undergo elastic deformation when the outer shell 10 is impacted, absorbing a large amount of impact energy. At the same time, its wear resistance and aging resistance ensure the stability and reliability of the cushioning layer 12 during long-term use.

[0056] In some embodiments, the protective housing 11 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The protective shell 11 is equipped with reinforcing beams.

[0057] The reinforcing beams enhance the structural strength and rigidity of the protective shell 11. Under significant impact, the reinforcing beams effectively disperse the impact force, preventing deformation or breakage of the protective shell 11 and improving the overall protective performance of the helmet.

[0058] When subjected to a heavy impact, the reinforcing beam can distribute the impact force to various parts of the protective shell 11, avoiding local stress concentration that could damage the protective shell 11, thereby better protecting the head safety of the workers.

[0059] In some embodiments, the protective housing 11 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The protective housing 11 is equipped with mounting slots.

[0060] The mounting slots on the protective housing 11 facilitate the installation of various accessories, such as lighting fixtures and cameras. In special working environments, such as underground tunnel construction or nighttime operations, installing lighting fixtures can provide workers with good illumination, improving work efficiency and safety. Installing cameras can record the work process, facilitating subsequent inspection and analysis.

[0061] In some embodiments, the protective housing 11 may be adopted as follows: Figure 1 , Figure 2 The structure shown. See also Figure 1 , Figure 2 The protective housing 11 is equipped with a magnetic adsorption seat.

[0062] The magnetic adsorption base can adsorb lights, cameras, and other accessories, making it convenient to install various attachments.

[0063] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layered cushioned anti-vibration safety hat, characterized in that, include: The outer casing has an open wearing cavity; The wearing cavity has multiple connection points on its inner wall near the opening; the connection points are spaced apart. The points where all the connection positions are located enclose a base circle; An adjustable cap liner is provided inside the wearing cavity and has a cap liner cavity that fits the head; The movable cap liner is slidably connected to each of the connecting positions, and the sliding direction is along the circumference of the base circle; A cushioning liner is disposed between the outer shell and the movable cap liner to cushion and absorb force when the outer shell is subjected to a vertical impact. A chin strap, attached to the movable cap liner, is used to place the movable cap liner over the worker's head.

2. The multi-layer cushioned anti-vibration safety hat of claim 1, wherein, The outer casing includes: The protective housing has the wearing cavity; A buffer layer is applied to the inner wall of the wearing cavity; A connecting cap liner is provided inside the buffer layer. The connecting cap liner has multiple detachably connected connecting blocks. One end of each connecting block is connected to the connecting cap liner, and the other end of each connecting block extends horizontally toward the wearing cavity. Each connecting block is located on the same horizontal plane, and each connecting block is the connecting position.

3. The multi-layer cushioned anti-vibration safety hat of claim 2, wherein, The movable cap liner includes: The main body of the cap liner is disposed inside the connecting cap liner and is slidably connected to each of the connecting blocks of the connecting cap liner. The main body of the cap liner is provided with a plurality of sliding grooves, each of the sliding grooves being provided in a one-to-one correspondence with each of the connecting blocks, and each of the sliding grooves being provided with a long through hole for the corresponding connecting block to slide. Multiple elastic reset units are provided, and each elastic reset unit is arranged in a one-to-one correspondence with each slide groove. Each elastic reset unit is disposed in the corresponding slide groove, and each elastic reset unit is used to ensure that the corresponding connecting block is always located in the middle position of the slide groove.

4. The multi-layer cushioned anti-vibration safety hat of claim 3, wherein, Each of the elastic reset units includes two elastic reset pieces. One end of each elastic reset piece is connected to the corresponding slide groove, and the other end of each elastic reset piece is connected to the corresponding connecting block. The two elastic reset pieces are used to make the connecting block tend to move towards the middle position of the slide groove.

5. The multi-layer cushioned anti-vibration safety hat of claim 4, wherein, The elastic reset piece is made of engineering plastic.

6. The multi-layer cushioned anti-vibration safety hat of claim 3, wherein, The cushioning liner includes multiple cushioning rings whose dimensions increase sequentially along the orientation of the wearing cavity opening; adjacent cushioning rings are spaced apart; each cushioning ring is connected to the connecting cap liner and the cap liner body.

7. The multi-layer cushioned anti-vibration safety hat of claim 2, wherein, The buffer layer is made of polyurethane.

8. The multi-layer cushioned anti-vibration safety hat of claim 2, wherein, The protective shell is equipped with reinforcing beams.

9. The multi-layer cushioned anti-vibration safety hat of claim 2, wherein, The protective housing is equipped with mounting slots.

10. The multi-layer cushioned anti-vibration safety hat of claim 2, wherein, The protective housing is equipped with a magnetic adsorption seat.

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