A double-layer protective helmet

Abstract

The utility model discloses a helmet of two -layer protection, including outer casing and buffer inner shell, the buffer inner shell is located the inner chamber of outer casing, the top of buffer inner shell is fixedly connected with the connecting column, the front and back both sides of connecting column all are fixedly connected with the limiting block, the top center position of outer casing is equipped with the round groove, the inner chamber bottom of round groove is equipped with the round hole, the utility model discloses a helmet of two -layer protection, through the upper turning restraint belt, and the magic paste wooly face is driven magic paste spine face away from magic paste, to this unfasten the fixing of restraint belt, then rotates the connecting ring, and the connecting ring drives second recess to rotate to the just below of limiting block, then moves connecting column downward to tear down buffer inner shell, at this moment also tear down restraint belt and the tightening band simultaneously, one can two, thereby to the cleaning or replacement of buffer inner shell, restraint belt and tightening band, avoid the bacteria breeding, guarantee the normal use of helmet.

Description

Technical Field

[0001] This utility model relates to the field of helmet technology, and in particular to a helmet that can provide double-layer protection. Background Technology

[0002] A helmet is a safety helmet that protects the head. A dual-protection helmet is a type of safety equipment typically used to protect the head from impact and cuts. It consists of two protective shells with a buffer layer between the inner and outer shells to effectively absorb impact forces.

[0003] Chinese Patent Publication No. CN221228792U discloses a dual-protection helmet, including an outer shell and a buffer inner shell connected to the outer shell to reduce pressure on the head. It also includes a pair of disassembly mechanisms mounted on the outer shell; pressing these mechanisms allows the buffer inner shell to be quickly removed from the outer shell for replacement or cleaning. This invention utilizes the cooperation of the outer shell, buffer inner shell, disassembly mechanisms, and switching mechanism. If the buffer inner shell can be disassembled and cleaned, damaged buffer inner shells can be replaced promptly, thus extending the helmet's lifespan. Furthermore, the helmet's interior can be cleaned regularly to maintain hygiene. Moreover, if the buffer inner shell is not cleaned for a long time, it may become damp and hard, causing discomfort to the wearer. If the buffer inner shell can be disassembled and cleaned, it can remain dry and soft, thereby improving wearer comfort.

[0004] However, in actual use, the strap components of the helmet cannot be disassembled for cleaning. When the helmet is in daily use, the head tends to sweat, and the sweat will run down the chin, thus wetting the straps, causing bacteria and dirt to grow on the straps, affecting normal use. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a helmet that can provide double-layer protection.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] A helmet with double-layer protection includes an outer shell and a buffer inner shell. The buffer inner shell is located inside the outer shell. A connecting post is fixedly connected to the top of the buffer inner shell. Limiting blocks are fixedly connected to both the front and rear sides of the connecting post. A circular groove is formed at the center of the top of the outer shell. A circular hole is formed at the bottom of the inner cavity of the circular groove. The top of the connecting post movably passes through the circular hole. A first groove is formed on both the front and rear sides of the inner cavity of the circular hole. A connecting ring is movably inserted into the inner cavity of the circular groove. The connecting ring is movably sleeved on the outside of the connecting post. A second groove is formed on both the left and right sides of the inner cavity of the connecting ring. Two restraining straps are fixedly connected to both the left and right sides of the connecting ring. Four arc-shaped grooves are formed on the top of the outer shell.

[0008] Furthermore, limiting strips are fixedly connected to both the front and rear sides of the buffer inner shell, and limiting grooves are opened on both the front and rear sides of the inner cavity of the outer shell. The limiting strips are movably inserted into the inner cavities of adjacent limiting grooves.

[0009] Furthermore, the limiting block is matched with the first groove and the second groove respectively, and the bottom of the limiting block is in contact with the top of the connecting ring.

[0010] Furthermore, the bottom of the outer shell is provided with a tightening strap, and the tightening strap is provided with a connecting buckle. The two ends of the tightening strap are respectively fixedly connected to two adjacent restraint straps.

[0011] Furthermore, the restraint strap is movably inserted into the inner cavity of an adjacent arc-shaped groove, and the restraint strap matches the arc-shaped groove.

[0012] Furthermore, the inner side of the restraint band is fixedly connected with a hook and loop fastener, and the bottom of the inner cavity of the arc-shaped groove is fixedly connected with a hook and loop fastener bar. The hook and loop fastener and the adjacent hook and loop fastener are attached to each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model provides a helmet with double-layer protection. By flipping up the restraint strap, the strap moves the looped side of the Velcro away from the barbed side, thereby releasing the restraint strap. Then, the connecting ring is rotated, causing the second groove to rotate directly below the limiting block. Then, the connecting post is moved downward, thereby removing the inner buffer shell. At the same time, the restraint strap and tightening strap are also removed, achieving two goals at once. This allows for cleaning or replacement of the inner buffer shell, restraint strap, and tightening strap, preventing bacterial growth and ensuring the normal use of the helmet.

[0015] 2. This utility model provides a helmet with double-layer protection. By setting the limiting strip and limiting groove, it can not only make the inner buffer shell enter the installation position more quickly during installation, but also prevent the inner buffer shell from deflecting after installation, thereby ensuring that the inner buffer shell plays a better role in cushioning and protection.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a frontal perspective view of the present invention;

[0018] Figure 2 This is a bottom-view perspective view of the present invention;

[0019] Figure 3 This utility model Figure 1 Exploded view;

[0020] Figure 4 This is a front perspective view of the outer shell of the component of this utility model;

[0021] Figure 5 This is a front perspective view of the inner buffer shell of the component of this utility model;

[0022] Figure 6 This is a frontal perspective view of the arc-shaped groove and the hook-and-loop fastener barbed surface of the component of this utility model;

[0023] Figure 7 This is a bottom perspective view of the limiting groove of the component of this utility model;

[0024] Figure 8 This is a front perspective view of the restraint strap component of this utility model;

[0025] Figure 9 This is a bottom perspective view of the restraint strap component of this utility model.

[0026] The following are the labels in the diagram: 1. Outer shell; 2. Inner buffer shell; 3. Limiting strip; 4. Limiting groove; 5. Connecting post; 6. Limiting block; 7. Circular groove; 8. Circular hole; 9. First groove; 10. Connecting ring; 11. Second groove; 12. Restraint strap; 13. Velcro loop surface; 14. Arc groove; 15. Velcro barbed surface; 16. Tightening strap. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Example 1

[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 9 A helmet with double-layer protection includes an outer shell 1 and a buffer inner shell 2. The buffer inner shell 2 is located inside the cavity of the outer shell 1. A connecting post 5 is fixedly connected to the top of the buffer inner shell 2. Limiting blocks 6 are fixedly connected to the front and rear sides of the connecting post 5. A circular groove 7 is opened at the center of the top of the outer shell 1. A circular hole 8 is opened at the bottom of the cavity of the circular groove 7. The top of the connecting post 5 is movably inserted through the circular hole 8. A first groove 9 is opened on the front and rear sides of the cavity of the circular hole 8. A connecting ring 10 is movably inserted into the cavity of the circular groove 7. The connecting ring 10 is movably sleeved on the outside of the connecting post 5. A second groove 11 is opened on the left and right sides of the cavity of the connecting ring 10. The limiting blocks 6 are matched with the first groove 9 and the second groove 11 respectively. The bottom of the limiting blocks 6 is in contact with the top of the connecting ring 10.

[0032] Two binding straps 12 are fixedly connected to both sides of the connecting ring 10. Four arc-shaped grooves 14 are opened on the top of the outer shell 1. A tightening strap 16 is provided at the bottom of the outer shell 1. A connecting buckle is provided on the tightening strap 16. The two ends of the tightening strap 16 are fixedly connected to two adjacent binding straps 12 respectively. The binding strap 12 is movably inserted into the inner cavity of the adjacent arc-shaped groove 14. The binding strap 12 and the arc-shaped groove 14 match each other. A hook and loop fastener 13 is fixedly connected to the inner side of the binding strap 12. A hook and loop fastener barbed surface 15 is fixedly connected to the bottom of the inner cavity of the arc-shaped groove 14. The hook and loop fastener 13 and the adjacent hook and loop fastener barbed surface 15 are attached to each other.

[0033] In the above embodiment, during use, the helmet is worn on the user's head, the tightening strap 16 is placed under the user's chin, and then connected by the connecting buckle to complete the wearing of the helmet.

[0034] When it is necessary to clean or replace the inner buffer shell 2, the restraint strap 12, and the tightening strap 16, flip the restraint strap 12 upwards. The restraint strap 12 moves the hook and loop surface 13 away from the hook and loop barbed surface 15, thereby releasing the restraint strap 12 from its fixation. Then rotate the connecting ring 10. The connecting ring 10 rotates outside the connecting post 5 and inside the circular groove 7. The connecting ring 10 drives the second groove 11 to rotate directly below the limiting block 6. At this time, the second groove 11 is connected to the first groove 9. Then move the connecting post 5 downwards. The connecting post 5 drives the limiting block 6 to pass through the first groove 9 and the second groove 11. The connecting post 5 drives the inner buffer shell 2 downwards, thereby removing the inner buffer shell 2. At the same time, the restraint strap 12 and the tightening strap 16 are also removed, so that the inner buffer shell 2, the restraint strap 12, and the tightening strap 16 can be cleaned or replaced.

[0035] When installing the new or cleaned inner buffer shell 2, restraint strap 12, and tightening strap 16, first move the inner buffer shell 2. The inner buffer shell 2 moves the limiting strip 3 into the inner cavity of the limiting groove 4. The inner buffer shell 2 also moves the connecting post 5 and passes through the round hole 8. At the same time, the limiting block 6 moves and passes through the first groove 9. Then move the connecting ring 10. The connecting ring 10 is sleeved on the outside of the connecting post 5. Align the second groove 11 on the connecting ring 10 with the limiting block 6. Then move the connecting ring 10 downward. The connecting ring 10 moves downward to the limiting groove 4. After the position block 6 is below, the connecting ring 10 is rotated 90 degrees. At this time, the second groove 11 is away from the position block 6. The connecting ring 10, through the cooperation of the position block 6 and the second groove 11, fixes the connecting post 5 and the buffer inner shell 2. Then, the binding strap 12 is flipped down and placed in the inner cavity of the corresponding arc groove 14. The binding strap 12 drives the hook and loop fastener 13 to stick to the adjacent hook and loop fastener barbed surface 15, thereby fixing the binding strap 12, thus completing the installation of the buffer inner shell 2, the binding strap 12 and the tightening strap 16.

[0036] Example 2

[0037] Please see Figure 2 , Figure 3 , Figure 5 and Figure 7 Limiting strips 3 are fixedly connected to both the front and rear sides of the inner shell 2, and limiting grooves 4 are opened on both the front and rear sides of the inner cavity of the outer shell 1. The limiting strips 3 are movably inserted into the inner cavity of the adjacent limiting grooves 4.

[0038] In the above embodiment, the setting of the limiting strip 3 and the limiting groove 4 can not only make the buffer inner shell 2 enter the installation position more quickly during installation, but also prevent the buffer inner shell 2 from deflecting after installation, thereby ensuring that the buffer inner shell 2 plays a better role in buffer protection.

[0039] Working principle: This utility model is a helmet that can provide double-layer protection. During use, the helmet is worn on the user's head, the tightening strap 16 is placed under the user's chin, and then connected by the connecting buckle to complete the wearing of the helmet.

[0040] When it is necessary to clean or replace the inner buffer shell 2, the restraint strap 12, and the tightening strap 16, flip the restraint strap 12 upwards. The restraint strap 12 moves the hook and loop surface 13 away from the hook and loop barbed surface 15, thereby releasing the restraint strap 12 from its fixation. Then rotate the connecting ring 10. The connecting ring 10 rotates outside the connecting post 5 and inside the circular groove 7. The connecting ring 10 drives the second groove 11 to rotate directly below the limiting block 6. At this time, the second groove 11 is connected to the first groove 9. Then move the connecting post 5 downwards. The connecting post 5 drives the limiting block 6 to pass through the first groove 9 and the second groove 11. The connecting post 5 drives the inner buffer shell 2 downwards, thereby removing the inner buffer shell 2. At the same time, the restraint strap 12 and the tightening strap 16 are also removed, so that the inner buffer shell 2, the restraint strap 12, and the tightening strap 16 can be cleaned or replaced.

[0041] When installing the new or cleaned inner buffer shell 2, restraint strap 12, and tightening strap 16, first move the inner buffer shell 2. The inner buffer shell 2 moves the limiting strip 3 into the inner cavity of the limiting groove 4. The inner buffer shell 2 also moves the connecting post 5 and passes through the round hole 8. At the same time, the limiting block 6 moves and passes through the first groove 9. Then move the connecting ring 10. The connecting ring 10 is sleeved on the outside of the connecting post 5. Align the second groove 11 on the connecting ring 10 with the limiting block 6. Then move the connecting ring 10 downward. The connecting ring 10 moves downward to the limiting groove 4. After the position block 6 is below, the connecting ring 10 is rotated 90 degrees. At this time, the second groove 11 is away from the position block 6. The connecting ring 10, through the cooperation of the position block 6 and the second groove 11, fixes the connecting post 5 and the buffer inner shell 2. Then, the binding strap 12 is flipped down and placed in the inner cavity of the corresponding arc groove 14. The binding strap 12 drives the hook and loop fastener 13 to stick to the adjacent hook and loop fastener barbed surface 15, thereby fixing the binding strap 12, thus completing the installation of the buffer inner shell 2, the binding strap 12 and the tightening strap 16.

[0042] In use, by flipping up the restraint strap 12, the strap 12 moves the Velcro loop surface 13 away from the Velcro barbed surface 15, thereby releasing the restraint strap 12 from its fixation. Then, by rotating the connecting ring 10, the connecting ring 10 rotates the second groove 11 to directly below the limiting block 6. Then, the connecting post 5 is moved downward, thereby removing the inner buffer shell 2. At the same time, the restraint strap 12 and the tightening strap 16 are also removed, achieving two goals at once. This allows for the cleaning or replacement of the inner buffer shell 2, the restraint strap 12, and the tightening strap 16, preventing bacterial growth and ensuring the normal use of the helmet.

[0043] In use, the limiting strip 3 and the limiting groove 4 of this utility model can not only make the buffer inner shell 2 enter the installation position more quickly during installation, but also prevent the buffer inner shell 2 from deflecting after installation, thereby ensuring that the buffer inner shell 2 plays a better role in buffer protection.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A helmet with double-layer protection, comprising an outer shell (1) and a buffer inner shell (2), characterized in that: The inner buffer shell (2) is located in the inner cavity of the outer shell (1). A connecting post (5) is fixedly connected to the top of the inner buffer shell (2). Limiting blocks (6) are fixedly connected to both the front and rear sides of the connecting post (5). A circular groove (7) is opened at the center of the top of the outer shell (1). A circular hole (8) is opened at the bottom of the inner cavity of the circular groove (7). The top of the connecting post (5) is movably connected through the circular hole (8). A first groove (9) is opened on both the front and rear sides of the inner cavity of the circular hole (8). A connecting ring (10) is movably inserted into the inner cavity of the circular groove (7). The connecting ring (10) is movably sleeved on the outside of the connecting post (5). A second groove (11) is opened on both the left and right sides of the inner cavity of the connecting ring (10). Two binding straps (12) are fixedly connected to both the left and right sides of the connecting ring (10). Four arc-shaped grooves (14) are opened on the top of the outer shell (1).

2. The helmet with double-layer protection as described in claim 1, characterized in that: Limiting strips (3) are fixedly connected to both the front and rear sides of the buffer inner shell (2), and limiting grooves (4) are opened on both the front and rear sides of the inner cavity of the outer shell (1). The limiting strips (3) are movably inserted into the inner cavity of the adjacent limiting grooves (4).

3. The helmet with double-layer protection as described in claim 1, characterized in that: The limiting block (6) is matched with the first groove (9) and the second groove (11) respectively, and the bottom of the limiting block (6) is in contact with the top of the connecting ring (10).

4. A dual layer protectable helmet as defined in claim 1, wherein: The bottom of the outer shell (1) is provided with a tightening strap (16), and the tightening strap (16) is provided with a connecting buckle. The two ends of the tightening strap (16) are respectively fixedly connected to two adjacent binding straps (12).

5. A helmet with double-layer protection as described in claim 1, characterized in that: The restraint strap (12) is movably inserted into the inner cavity of the adjacent arc-shaped groove (14), and the restraint strap (12) and the arc-shaped groove (14) are matched with each other.

6. A dual layer protectable helmet as defined in claim 1, wherein: The inner side of the binding strap (12) is fixedly connected with a hook and loop surface (13), and the bottom of the inner cavity of the arc groove (14) is fixedly connected with a hook and loop barbed surface (15). The hook and loop surface (13) and the adjacent hook and loop barbed surface (15) are attached to each other.

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