A helmet device

Abstract

The application relates to a helmet device and relates to the technical field of head protection equipment, which comprises a helmet main body, a first mounting shell is arranged above the helmet main body, and a second mounting shell is arranged above the first mounting shell. The application is characterized in that a camera or a thermal induction lens is installed in the fixed shell through the arrangement of components such as a first gear, a first rack, a first clamping block and a first spring. An operator moves the first clamping block by pulling the handle groove, the two first clamping blocks are relatively opened through the connection of the first gear and the first rack, the bottom plate and the fixed shell are buckled in the placing groove at the moment, then the first clamping block is loosened, the first clamping block is pulled tight under the action of the first spring, the first clamping block is in a static state, the first clamping block and the anti-skid pad block clamp the fixed shell, the fixed shell can be quickly assembled and disassembled, the camera or the thermal induction lens can be quickly assembled and disassembled, and the bottom plate and the fixed shell can be replaced according to requirements.

Description

Technical Field

[0001] This application relates to the field of head protection technology, and in particular to a helmet device. Background Technology

[0002] A helmet is a protective piece of equipment designed to protect the head. It typically consists of a hard outer shell and a cushioned inner liner. It can effectively absorb and disperse impact forces, reducing the risk of head injury in accidents such as traffic accidents, sports collisions, or falling objects. It is widely used in many fields such as cycling, construction, military, and sports, and is an important protective product to ensure personal safety.

[0003] However, in existing construction helmets, it has been found that helmets equipped with cameras or thermal sensors typically integrate the camera or thermal sensor into the functional module, fixing the helmet to the functional module. This improves the helmet's practicality, but because the helmet and functional module are fixed together, they are difficult to separate, making it difficult to inspect and replace the functional module. Utility Model Content

[0004] The purpose of this application is to provide a helmet device that, through the cooperation of springs, clamping blocks, and anti-slip pads, can clamp the fixed shell, facilitate the quick assembly and disassembly of functional modules, thereby enabling the quick assembly and disassembly of cameras or thermal sensors, and facilitating the replacement of functional modules as needed, thus solving the problems mentioned in the background art.

[0005] This application provides a helmet device with the following technical solution: It includes a helmet body, a first mounting shell placed on top of the helmet body, a second mounting shell above the first mounting shell, two positioning pins fixedly connected to the bottom surface of the second mounting shell, and a first locking mechanism and a second locking mechanism mounted on the bottom surface of the second mounting shell. The first locking mechanism includes a first gear and two first springs. The inner wall of the first gear is rotatably connected to the outer surface of the corresponding positioning pin. Two first racks mesh with the outer surface of the first gear. A first clamping block is fixedly connected to one end of each first rack that is far apart from each other. The outer surface of each first clamping block is slidably connected to the inner wall of the second mounting shell. Next, each of the first clamping blocks has a first limiting groove on its bottom surface, and each of the first limiting grooves has a first limiting post inside. The top of each of the first limiting posts is fixedly connected to the bottom surface of the second mounting shell. Two first fixing blocks are fixedly connected to the bottom surface of each of the first clamping blocks. The inner wall of each of the first fixing blocks is fixedly connected to the end of the corresponding first spring. The upper surface of the second mounting shell has a placement groove, and the inner wall of the placement groove has a bottom plate. The fixing shell is located above the bottom plate. Each of the first clamping blocks has an anti-slip pad installed on its outer surface. Each anti-slip pad is adapted to the fixing shell. Each of the first clamping blocks has a handle groove on its outer surface.

[0006] By adopting the above technical solution, a first mounting shell is set above the helmet body, and a second mounting shell is set above the first mounting shell. A positioning post is installed on the bottom surface of the second mounting shell to position the positioning post. A first locking mechanism and a second locking mechanism are set on the bottom surface of the second mounting shell. A first gear is connected to the corresponding positioning post in a rotatable connection to limit the movement of the first gear. A first rack is set on both sides of the first gear, and the first gear and the first rack are meshed so that when the first gear rotates, it can drive the two first racks to slide together. A first clamping block is fixed to the first rack so that when the first rack moves, it can drive the corresponding first clamping block to move. A first limiting groove is set to connect with the first limiting post to improve the first clamping position. To ensure stability during block movement, a placement groove is created on the upper surface of the second mounting shell, and the base plate and fixing shell are placed above the placement groove. The base plate and fixing shell allow for the installation of a camera or thermal imaging lens. Anti-slip pads are installed on the outer surface of the first clamping block, allowing the first clamping block and anti-slip pads to clamp the outer surface of the fixing shell. By connecting the first fixing block to the first spring, the first spring can always tighten the corresponding first clamping block, thus keeping the first clamping block in a stationary state. This facilitates the installation and removal of the upper base plate and fixing shell, and makes it easy to replace the base plate and fixing shell as needed. A handle groove is created on the surface of the corresponding first clamping block, making it easy for the operator to pull the first clamping block to move, improving operational convenience.

[0007] Preferably, the upper surface of the first mounting shell is fixedly connected with equidistantly arranged locking pins, the bottom surface of the second mounting shell is fixedly connected with equidistantly arranged connecting posts, each of the connecting posts being engaged with a corresponding locking pin, and the inner top wall of the fixed shell is fixedly connected with equidistantly arranged connecting parts, the inner wall of each connecting part being equipped with a fixing bolt, and each fixing bolt being installed with a corresponding base plate.

[0008] By adopting the above technical solution, the locking pin is fixed to the first mounting shell, and the connecting column is installed on the bottom surface of the second mounting shell. The locking pin and the connecting column are used to fix the first mounting shell and the second mounting shell. The connecting part is installed on the inner top wall of the fixed shell, and the fixing bolt is connected to the connecting part. When the base plate and the fixed shell need to be connected, the base plate and the fixed shell are fitted together through the gap, and then the fixing bolt is installed to connect to the connecting part to realize the assembly of the base plate and the fixed shell. Conversely, disassembly is realized.

[0009] Preferably, the outer surface of the helmet body has a first slot arranged at equal intervals, the outer surface of the helmet body has a second slot arranged at equal intervals, and the bottom surface of the first mounting shell is fixedly connected to two locking blocks, each of the locking blocks being adapted to the corresponding second slot.

[0010] By adopting the above technical solution, the first slot is opened on the outer surface of the helmet body, and the second slot is opened on the left outer surface of the helmet body, so as to achieve the positioning of the first slot and the second slot. The card block is installed on the bottom surface of the first mounting shell, and the card block is adapted to the second slot, so that when the first mounting shell is connected to the helmet body, the positioning is first achieved by the connection between the card block and the second slot.

[0011] Preferably, the second locking mechanism includes a second gear and two second springs, wherein the inner wall of the second gear is rotatably connected to the outer surface of the corresponding positioning post.

[0012] By adopting the above technical solution, a second gear is set and connected to the corresponding positioning post, which is set as a rotatable connection, so that the second gear can be limited to the outer surface of the positioning post.

[0013] Preferably, the outer surface of the second gear meshes with two second racks, and each of the second racks has a second clamping block fixedly connected to one end that is far apart from the other. The outer surface of each second clamping block is slidably connected to the inner wall of the second mounting shell.

[0014] By adopting the above technical solution, the second rack is set on both sides of the second gear, and the second gear meshes with the second rack, so that when the second gear rotates, it can drive the two second racks to slide synchronously. The second clamping block is installed at the ends of the second racks that are far apart from each other, and the second clamping block and the second mounting shell are set to slide together, thereby realizing the limitation of the movement of the second clamping block.

[0015] Preferably, each of the second clamping blocks has two second limiting grooves on its bottom surface, and each of the second clamping blocks has a protrusion fixedly connected to its outer surface. Each of the second clamping blocks is adapted to the corresponding first slot.

[0016] By adopting the above technical solution, two second limiting grooves are opened on the bottom surface of the second clamping block to achieve positioning of the second limiting grooves. The protrusion is installed on the outer surface of the second clamping block, which makes it easy for the operator to pull the protrusion to move the second clamping block. The second clamping block is adapted to the corresponding first slot, so that the second clamping block can be inserted into the corresponding first slot. With the engagement of the second slot and the block, the helmet body and the first mounting shell can be connected to achieve the installation of the first mounting shell.

[0017] Preferably, each of the second limiting grooves is provided with a second limiting post inside, and the top of each second limiting post is fixedly connected to the bottom surface of the second mounting shell.

[0018] By adopting the above technical solution, the second limiting post is installed inside the second limiting groove, and the top of the second limiting post is fixed to the bottom surface of the second mounting shell, so that the second clamping block can be limited by the second limiting groove and the second limiting post when moving, thereby improving the stability of the second clamping block when moving.

[0019] Preferably, each of the second clamping blocks has two second fixing blocks fixedly connected to its bottom surface, and the inner wall of each second fixing block is fixedly connected to the end of the corresponding second spring.

[0020] By adopting the above technical solution, the second fixing block is installed on the bottom surface of the second clamping block, and the second fixing block is fixed to the corresponding second spring, so that the second spring can always pull the corresponding second clamping block, thereby keeping the second clamping block in a stationary state and always connected to the first slot, which facilitates the installation and removal of the first mounting shell and the second mounting shell from the surface of the helmet body.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This helmet device, comprising a first gear, a first rack, a first clamping block, and a first spring, houses a camera or thermal imaging lens inside a fixed shell. The operator moves the first clamping block by pulling on a handle slot. Through the connection between the first gear and the first rack, the two clamping blocks open relative to each other. The base plate and the fixed shell are then secured in a placement slot. Releasing the first clamping block causes it to tighten under the action of the first spring, bringing it to a stationary state. At this point, the first clamping block and the anti-slip pad grip the fixed shell, facilitating quick assembly and disassembly of the fixed shell, thereby enabling rapid assembly and disassembly of the camera or thermal imaging lens. The base plate and mounting shell are replaced as needed. The operator pulls the corresponding second clamping block. Under the action of the second gear and the second rack, the two second clamping blocks can move relative to each other. Then, through the connection between the second slot and the clamping block, the first mounting shell is fastened to the top of the helmet body. Then, the second clamping block is released. Under the action of the second spring, the two second clamping blocks are pulled tight, so that the second clamping blocks are in a stationary state. At this time, the protrusion of the second clamping block is inserted into the corresponding first slot, realizing the installation of the first mounting shell. This facilitates the assembly and disassembly of the first and second mounting shells, thereby making the first locking mechanism and the second locking mechanism easy to disassemble and maintain. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the entire application in three dimensions; Figure 2 This is a schematic diagram of the overall left view of this application; Figure 3 This is a structural diagram illustrating the connection between the helmet body and the second slot in this application; Figure 4 This is a schematic diagram of the connection relationship between the first mounting shell and the card block in this application; Figure 5 This is a structural diagram illustrating the connection between the base plate and the fixed shell in this application; Figure 6 This is a structural diagram illustrating the connection relationship between the first mounting shell and the locking pin in this application. Figure 7 This is a schematic diagram of the structure of the first locking mechanism and the second locking mechanism of this application; Figure 8 This is a structural diagram illustrating the connection between the second mounting shell and the placement slot in this application.

[0023] In the picture: 1. Helmet body; 2. First mounting shell; 3. Locking pin; 4. Second mounting shell; 5. Connecting post; 6. First locking mechanism; 601. First gear; 602. First rack; 603. First clamping block; 604. First limiting groove; 605. First limiting post; 606. First fixing block; 607. First spring; 608. Handle groove; 7. Second locking mechanism; 701. Second gear; 702. Second rack; 703. Second clamping block; 704. Second limiting groove; 705. Second limiting post; 706. Second fixing block; 707. Second spring; 708. Protrusion; 8. Positioning post; 9. Placement groove; 10. Base plate; 11. Fixing shell; 12. Connecting part; 13. Fixing bolt; 14. Anti-slip pad; 15. First slot; 16. Second slot; 17. Locking block. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.

[0025] Example 1: A helmet device, please refer to Figure 1 , Figure 7 and Figure 8The helmet assembly includes a helmet body 1, a first mounting shell 2 placed on top of the helmet body 1, and a second mounting shell 4 placed above the first mounting shell 2. Two positioning pins 8 are fixedly connected to the bottom surface of the second mounting shell 4. The positioning pins 8 are mounted on the bottom surface of the second mounting shell 4 to achieve positioning. A first locking mechanism 6 and a second locking mechanism 7 are mounted on the bottom surface of the second mounting shell 4. The first locking mechanism 6 includes a first gear 601 and two first springs 607. The inner wall of the first gear 601 is rotatably connected to the outer surface of the corresponding positioning pin 8. The first locking mechanism 6 and the second locking mechanism 7 are located on the bottom surface of the second mounting shell 4, connecting the first gear 601 to the corresponding positioning pin 8 in a rotatable connection to limit the movement of the first gear 601. Two first racks 602 mesh with the outer surface of the first gear 601. First racks 602 are set on both sides of the first gear 601, and the first gear 601 meshes with the first racks 602, so that when the first gear 601 rotates, it can drive the two first racks 602 to slide together. Each first rack 602 has a first clamping block 603 fixedly connected to the opposite end. The outer surface of each first clamping block 603 is slidably connected to the inner wall of the second mounting shell 4. Each first clamping block 603 has a first limiting groove 604 on its bottom surface. Each first limiting groove 604 has a first limiting post 605 inside it. The top of each first limiting post 605 is fixedly connected to the bottom surface of the second mounting shell 4. The first clamping blocks 603 are fixed to the first racks 602, so that when the first rack 602 moves, it can drive the corresponding first clamping block 603 to move. By setting the first limiting groove 604 and the first limiting post 605 to connect, the stability of the first clamping block 603 when it moves is improved.

[0026] Please see Figure 1 , Figure 5 and Figure 7Each first clamping block 603 has two first fixing blocks 606 fixedly connected to its bottom surface. The inner wall of each first fixing block 606 is fixedly connected to the end of the corresponding first spring 607. The upper surface of the second mounting shell 4 has a placement groove 9. The inner wall of the placement groove 9 is provided with a base plate 10. A fixing shell 11 is provided above the base plate 10. The placement groove 9 is opened on the upper surface of the second mounting shell 4, and the base plate 10 and fixing shell 11 are placed above the placement groove 9. The camera or thermal sensor lens can be installed through the base plate 10 and fixing shell 11. Each first clamping block 603 has an anti-slip pad 14 installed on its outer surface. Each anti-slip pad 14 is adapted to the fixing shell 11. Anti-slip pads 14 are installed on the surface, allowing the first clamping block 603 and the anti-slip pads 14 to clamp the outer surface of the fixed shell 11. Each first clamping block 603 has a handle groove 608 on its outer surface. The handle groove 608 is provided on the surface of the corresponding first clamping block 603, making it convenient for the operator to pull the first clamping block 603 to move, thus improving the ease of operation. By setting the first fixed block 606 to be connected to the first spring 607, the first spring 607 can always tighten the corresponding first clamping block 603, so that the first clamping block 603 is in a stationary state, which facilitates the installation and removal of the upper base plate 10 and the fixed shell 11, and makes it convenient to replace the base plate 10 and the fixed shell 11 as needed.

[0027] Example 2: A helmet device, please refer to Figure 4 , Figure 6 and Figure 7 The upper surface of the first mounting shell 2 is fixedly connected with equidistantly arranged locking pins 3, and the bottom surface of the second mounting shell 4 is fixedly connected with equidistantly arranged connecting posts 5. Each connecting post 5 is engaged with a corresponding locking pin 3, fixing the locking pin 3 to the first mounting shell 2 and installing the connecting post 5 on the bottom surface of the second mounting shell 4. The engagement of the locking pin 3 with the connecting post 5 allows the first mounting shell 2 and the second mounting shell 4 to be fixed. The inner top wall of the fixed shell 11 is fixedly connected with equidistantly arranged connecting parts 12. Each connecting part 12 has a fixing bolt 13 installed on its inner wall, and each fixing bolt 13 is installed with a corresponding base plate 10. The connecting part 12 is installed on the inner top wall of the fixed shell 11, and the fixing bolt 13 is connected to the connecting part 12. When the base plate 10 and the fixed shell 11 need to be connected, the base plate 10 and the fixed shell 11 are fitted together through the gap, and then the fixing bolt 13 is installed to connect with the connecting part 12, realizing the assembly of the base plate 10 and the fixed shell 11. Conversely, disassembly is realized.

[0028] Please see Figure 3 , Figure 4 and Figure 7The outer surface of the helmet body 1 has a first slot 15 arranged at equal intervals, and the outer surface of the helmet body 1 has a second slot 16 arranged at equal intervals. The bottom surface of the first mounting shell 2 is fixedly connected to two blocks 17, each block 17 being adapted to the corresponding second slot 16. The first slot 15 is opened on the outer surface of the helmet body 1, and the second slot 16 is opened on the left outer surface of the helmet body 1, so as to achieve the positioning of the first slot 15 and the second slot 16. The blocks 17 are installed on the bottom surface of the first mounting shell 2, and the blocks 17 are adapted to the second slot 16, so that when the first mounting shell 2 is connected to the helmet body 1, the positioning is first achieved through the connection between the blocks 17 and the second slot 16.

[0029] Please see Figure 2 , Figure 4 and Figure 7The second locking mechanism 7 includes a second gear 701 and two second springs 707. The inner wall of the second gear 701 is rotatably connected to the outer surface of the corresponding positioning post 8. The second gear 701 is configured to be rotatably connected to the corresponding positioning post 8, so that the second gear 701 can be limited to the outer surface of the positioning post 8. The outer surface of the second gear 701 meshes with two second racks 702. Each second rack 702 has a second clamping block 703 fixedly connected to one end that is far away from each other. The outer surface of each second clamping block 703 slides against the inner wall of the second mounting shell 4. The connection is achieved by placing the second rack 702 on both sides of the second gear 701, and meshing the second gear 701 with the second rack 702, so that when the second gear 701 rotates, it can drive the two second racks 702 to slide synchronously. The second clamping block 703 is installed at the ends of the second racks 702 that are far apart from each other, and the second clamping block 703 is slidably connected to the second mounting shell 4, thereby limiting the movement of the second clamping block 703. The bottom surface of each second clamping block 703 has two second limiting grooves 704, and the outer surface of each second clamping block 703 is fixed. A protrusion 708 is fixedly connected to each second clamping block 703, which is adapted to a corresponding first slot 15. Two second limiting grooves 704 are formed on the bottom surface of the second clamping block 703 to achieve positioning of the second limiting grooves 704. The protrusion 708 is installed on the outer surface of the second clamping block 703, so that the operator can pull the protrusion 708 to move the second clamping block 703. The second clamping block 703 is adapted to the corresponding first slot 15 so that the second clamping block 703 can be inserted into the corresponding first slot 15. With the engagement of the second slot 16 and the clamping block 17, it can... The helmet body 1 and the first mounting shell 2 can be connected to realize the installation of the first mounting shell 2. Each second limiting groove 704 is provided with a second limiting post 705 inside. The top of each second limiting post 705 is fixedly connected to the bottom surface of the second mounting shell 4. The second limiting post 705 is installed inside the second limiting groove 704 and the top of the second limiting post 705 is fixed to the bottom surface of the second mounting shell 4, so that the second clamping block 703 can be limited by the second limiting groove 704 and the second limiting post 705 when moving, thereby improving the stability of the second clamping block 703 when moving.

[0030] Please see Figure 3 and Figure 7Each second clamping block 703 has two second fixing blocks 706 fixedly connected to its bottom surface. The inner wall of each second fixing block 706 is fixedly connected to the end of the corresponding second spring 707. The second fixing blocks 706 are installed on the bottom surface of the second clamping block 703 and fixed to the corresponding second spring 707, so that the second spring 707 can always pull the corresponding second clamping block 703, thereby keeping the second clamping block 703 stationary and always connected to the first slot 15, which facilitates the installation and removal of the first mounting shell 2 and the second mounting shell 4 from the surface of the helmet body 1.

[0031] The implementation principle of this application embodiment is as follows: Through the connection of the locking pin 3 and the connecting post 5, the first mounting shell 2 and the second mounting shell 4 can be interlocked. The operator pulls one of the second clamping blocks 703, and under the action of the second gear 701 and the second rack 702, the two second clamping blocks 703 can move relative to each other. Then, the first mounting shell 2 moves, causing the bottom locking block 17 to connect with the second locking groove 16. Subsequently, the first mounting shell 2 is fitted to the helmet body 1. At this time, the second clamping block 703 is released, and under the action of the second spring 707, the two second clamping blocks 703 are reset. The second clamping block 703 then engages with the corresponding first locking groove 15. The second spring 707 tightens the second clamping block 703, bringing it to a stationary state. At this point, the connection between the first mounting shell 2 and the second mounting shell 4 and the helmet body 1 is completed, and the camera or thermal imaging lens is mounted on the fixed shell 11. Internally, the connection between the connecting part 12 and the fixing bolt 13 is used to connect the base plate 10 and the fixed shell 11. At this time, the operator pulls one of the first clamping blocks 603. Through the connection of the first gear 601 and the first rack 602, the two first clamping blocks 603 are opened relative to each other. Then, the base plate 10 is inserted into the placement groove 9. Subsequently, the first clamping block 603 is released. The first spring 607 causes the two first clamping blocks 603 to quickly return to their original position. At this time, the first clamping block 603 and the anti-slip pad 14 clamp the fixed shell 11, thus fixing the fixed shell 11. The first spring 607 can always keep the first clamping block 603 taut, keeping the first clamping block 603 in a stationary state. This makes it easy to install and disassemble the fixed shell 11 and the internal functional components, and also makes it easy to replace the base plate 10, the fixed shell 11 and the internal functional components as needed.

Claims

1. A helmet device, comprising a helmet body (1), characterized in that: A first mounting shell (2) is placed on top of the helmet body (1), and a second mounting shell (4) is provided above the first mounting shell (2). Two positioning posts (8) are fixedly connected to the bottom surface of the second mounting shell (4). A first locking mechanism (6) and a second locking mechanism (7) are installed on the bottom surface of the second mounting shell (4). The first locking mechanism (6) includes a first gear (601) and two first springs (607). The inner wall of the first gear (601) is rotatably connected to the outer surface of the corresponding positioning post (8). Two first racks (602) mesh with the outer surface of the first gear (601). A first clamping block (603) is fixedly connected to one end of each first rack (602) that is far away from each other. The outer surface of each first clamping block (603) is slidably connected to the inner wall of the second mounting shell (4). A first locking mechanism (603) is opened on the bottom surface of each first clamping block (603). A limiting groove (604) is provided inside each first limiting groove (604), and the top of each first limiting post (605) is fixedly connected to the bottom surface of the second mounting shell (4). Two first fixing blocks (606) are fixedly connected to the bottom surface of each first clamping block (603). The inner wall of each first fixing block (606) is fixedly connected to the end of the corresponding first spring (607). A placement groove (9) is opened on the upper surface of the second mounting shell (4). A bottom plate (10) is provided on the inner wall of the placement groove (9). A fixing shell (11) is provided above the bottom plate (10). An anti-slip pad (14) is installed on the outer surface of each first clamping block (603). Each anti-slip pad (14) is adapted to the fixing shell (11). A handle groove (608) is opened on the outer surface of each first clamping block (603).

2. The helmet device according to claim 1, characterized in that: The upper surface of the first mounting shell (2) is fixedly connected with equidistantly arranged locking pins (3), and the bottom surface of the second mounting shell (4) is fixedly connected with equidistantly arranged connecting posts (5). Each of the connecting posts (5) is engaged with the corresponding locking pin (3). The inner top wall of the fixed shell (11) is fixedly connected with equidistantly arranged connecting parts (12). The inner wall of each connecting part (12) is equipped with a fixing bolt (13), and each fixing bolt (13) is installed with the corresponding base plate (10).

3. The helmet device according to claim 1, characterized in that: The outer surface of the helmet body (1) is provided with a first slot (15) arranged at equal distances, and the outer surface of the helmet body (1) is provided with a second slot (16) arranged at equal distances. The bottom surface of the first mounting shell (2) is fixedly connected with two blocks (17), and each block (17) is adapted to the corresponding second slot (16).

4. The helmet device according to claim 1, characterized in that: The second locking mechanism (7) includes a second gear (701) and two second springs (707), the inner wall of the second gear (701) being rotatably connected to the outer surface of the corresponding positioning post (8).

5. A helmet device according to claim 4, characterized in that: The outer surface of the second gear (701) meshes with two second racks (702), and each of the second racks (702) has a second clamping block (703) fixedly connected to one end of each rack (702) that is far apart from each other. The outer surface of each second clamping block (703) is slidably connected to the inner wall of the second mounting shell (4).

6. A helmet device according to claim 5, characterized in that: Each of the second clamping blocks (703) has two second limiting grooves (704) on its bottom surface, and each of the second clamping blocks (703) has a protrusion (708) fixedly connected to its outer surface. Each of the second clamping blocks (703) is adapted to the corresponding first slot (15).

7. A helmet device according to claim 6, characterized in that: Each of the second limiting grooves (704) is provided with a second limiting post (705) inside, and the top of each second limiting post (705) is fixedly connected to the bottom surface of the second mounting shell (4).

8. A helmet device according to claim 5, characterized in that: Each of the second clamping blocks (703) has two second fixing blocks (706) fixedly connected to its bottom surface, and the inner wall of each second fixing block (706) is fixedly connected to the end of the corresponding second spring (707).

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