Police protective helmet

Abstract

The invention relates to the technical field of police helmets, and particularly discloses a police protective helmet which comprises a helmet body, and quick release assemblies are symmetrically arranged on the two sides of the outer wall of the helmet body; the quick release assembly comprises a mounting cover fixed with the helmet body; the helmet body comprises a lens mounting area, and a sliding groove which is located above the lens mounting area and is communicated with the lens mounting area is formed in the helmet body; arc-shaped flexible pads are fixed to the two sides of the inner wall of the helmet body, motors are fixed to the gaps between the two flexible pads and the helmet body, the output ends of the motors penetrate through the sliding grooves, a first rotating shaft is fixed to the outer wall of the helmet body, and the first rotating shaft is rotationally connected with the inner wall of the mounting cover; rotating rings I rotationally connected with the rotating shafts I and rotating rings II fixedly connected with the rotating shafts I are sequentially arranged on the outer walls of the rotating shafts I; the problems that lenses of an existing protective helmet are inconvenient to replace, and sight is affected in rainy days are solved.

Description

Technical Field

[0001] This invention relates to the field of police helmet technology, and more particularly to a police protective helmet. Background Technology

[0002] In police work, officers often face various complex and dangerous environments and situations, such as patrolling, handling emergencies, and participating in arrest operations. In these scenarios, officers not only need to protect their heads from accidental impacts and falling objects, but also need to cope with visual interference caused by different weather conditions and special mission requirements.

[0003] Traditional police helmets have relatively limited functionality, primarily focusing on basic head protection with less consideration for visual protection. For example, in bright sunlight, strong light can shine directly into officers' eyes, impairing vision, reducing work efficiency, and potentially posing safety hazards. In rainy weather, rainwater can directly hit the face, obstructing vision and greatly hindering officers' movements. Furthermore, during special missions, such as scenarios involving potential gunfire threats, ordinary helmets cannot provide effective bulletproof protection for officers' eyes.

[0004] While some helmets on the market offer some functionality, they often have numerous shortcomings. Some helmets, although equipped with visors, have cumbersome installation and removal processes, making it difficult for police officers to quickly replace or adjust the visors in emergencies. Some helmets with rain protection have poorly designed rain visors that drain water effectively, causing rainwater to accumulate on the visor and impairing vision.

[0005] Therefore, a police protective helmet is proposed to solve the problems of inconvenient lens replacement and impaired vision in rainy weather in existing protective helmets. Summary of the Invention

[0006] The purpose of this invention is to provide a police protective helmet to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A police protective helmet includes a helmet body, wherein quick-release components are symmetrically arranged on both sides of the outer wall of the helmet body; the quick-release components include mounting covers that are fixed to the helmet body. The helmet body includes a lens mounting area, and a sliding groove located above and communicating with the lens mounting area is provided in the helmet body; The inner wall of the helmet body is fixed with two arc-shaped flexible pads on both sides. A motor is fixed in the gap between the two flexible pads and the helmet body. Its output end passes through the sliding groove and the outer wall of the helmet body and is fixed with a rotating shaft. The rotating shaft is rotatably connected to the inner wall of the mounting cover. The outer walls of both rotating shafts are sequentially provided with a rotating ring 1 that is rotatably connected to them and a rotating ring 2 that is fixedly connected to them. One end of the rotating ring 1 is attached to the outer wall of the helmet body, and the other end is attached to the rotating ring 2. Two vertically arranged connecting frames are fixedly connected between the rotating ring one and the rotating ring two through the mounting cover and the lens mounting area. Lens one is detachably installed between the two connecting frames. A second lens is slidably connected in the sliding groove, and both ends of the second lens are fitted onto the outer wall of the first rotating shaft and rotatably connected by mounting rings. The helmet body and the rotating ring are respectively provided with an interconnected limiting groove 1 and a limiting groove 2, and a switching component is provided in the limiting groove 1 and the limiting groove 2. The rotating ring has mounting grooves through its two end faces, and a cylinder is fixed in the mounting grooves. The output end of the cylinder faces the switching component and is in contact with it. When the cylinder performs work, it pushes the switching component to switch the connection relationship between the rotating ring one, the rotating ring two, and the helmet body.

[0008] Preferably, the helmet body has the quick-release components symmetrically arranged on both sides of its outer wall; the quick-release components include mounting covers that are fixed to the helmet body. The helmet body includes a lens mounting area, and a sliding groove located above and communicating with the lens mounting area is provided in the helmet body; The inner wall of the helmet body is fixed with two arc-shaped flexible pads on both sides. A motor is fixed in the gap between the two flexible pads and the helmet body. Its output end passes through the sliding groove and the outer wall of the helmet body and is fixed with a rotating shaft. The rotating shaft is rotatably connected to the inner wall of the mounting cover. The outer walls of both rotating shafts are sequentially provided with a rotating ring 1 that is rotatably connected to them and a rotating ring 2 that is fixedly connected to them. One end of the rotating ring 1 is attached to the outer wall of the helmet body, and the other end is attached to the rotating ring 2. Two vertically arranged connecting frames are fixedly connected between the rotating ring one and the rotating ring two through the mounting cover and the lens mounting area. Lens one is detachably installed between the two connecting frames. A second lens is slidably connected in the sliding groove, and both ends of the second lens are fitted onto the outer wall of the first rotating shaft and rotatably connected by mounting rings. The helmet body and the rotating ring are respectively provided with an interconnected limiting groove 1 and a limiting groove 2, and a switching component is provided in the limiting groove 1 and the limiting groove 2. The rotating ring has mounting grooves through its two end faces, and a cylinder is fixed in the mounting grooves. The output end of the cylinder faces the switching component and is in contact with it. When the cylinder performs work, it pushes the switching component to switch the connection relationship between the rotating ring one, the rotating ring two, and the helmet body.

[0009] Preferably, the connecting frame is an L-shaped plate, with the longer end extending horizontally to support the first lens, and the shorter end facing away from the helmet body and a snap-fit ​​plate fixed vertically thereon. The length of the snap-fit ​​plate is shorter than the longer end of the connecting frame, and the first lens is snapped between the two connecting frames and the snap-fit ​​plate.

[0010] Preferably, the width of the first limiting groove is greater than the width of the second limiting groove, and a limiting block is fixed at the bottom of the first limiting groove by a spring. The limiting block is adapted to the width of the first limiting groove and slides within it.

[0011] Preferably, the switching assembly includes two sealing blocks that are slidably connected in the first limiting groove and the second limiting groove. A connecting block is fixed on one side of the two sealing blocks. The connecting block is a cylindrical metal rod. A spring is sleeved on the outer wall of the two connecting blocks.

[0012] Preferably, the two ends of the second spring are welded and fixed to the two sealing blocks respectively. Under normal conditions, the second spring remains in a naturally extended state, so that the two sealing blocks are in a separated state. The sealing block near the second rotating ring is fixedly connected to the cylinder output end, and the sealing block near the first limiting groove is in contact with the limiting block.

[0013] Preferably, it also includes a rainproof face shield, with snap-fit ​​strips fixed at both the upper and lower ends. The snap-fit ​​strips are adapted to the spacing between the connecting frame and the snap-fit ​​plate, and can be quickly installed on the connecting frame by snap-fit, replacing the lens.

[0014] Preferably, the rainproof face mask has a drainage component fixed to its edge for quickly draining rainwater from the face mask surface; a rectangular through groove is provided at the center of the edge face mask, the through groove is arranged along the edge of the face mask, a plurality of water holes communicating with the drainage component are provided at the bottom of the through groove, and a plurality of air blowing holes corresponding to the positions of the water holes are provided at the top of the through groove. The air blowing holes are inclined holes that blow air in the direction of the water holes, and the air blowing holes are all connected to an air blowing device.

[0015] Preferably, the drainage component includes a mounting shell, which is fixedly connected to the rainproof face shield. The mounting shell has an opening facing the windward side of the helmet, and a second rotating shaft is rotatably connected to the opening. The second rotating shaft is arranged laterally along the mounting shell. A spiral plate and an impeller are fixed to the outer walls of the two rotating shafts, respectively. The spiral plate is located in front of the opening relative to the impeller, and the spiral plate has an arc-shaped blade structure. The impeller is a centrifugal impeller, and a second water passage hole is provided inside the mounting housing. The impeller communicates with the first water passage hole through the second water passage hole.

[0016] Preferably, the spiral plate and the impeller are separated by a partition plate, which is a circular metal plate, welded and fixed to the inner wall of the mounting shell, and rotatably connected to the rotating shaft via a bearing. The bottom of the mounting housing is provided with an air hole corresponding to the position of the spiral plate and a water passage hole corresponding to the position of the impeller.

[0017] The beneficial effects of this invention: This invention employs a unique cylinder and switching component design, achieving precise adjustment and stable fixation of the lens angle. Police officers can easily switch the connection state between the rotating ring and the helmet body by simply operating the cylinder, thereby rotating the connecting frame and flexibly adjusting the lens angle. After adjustment, the cylinder output extends, further locking the relative positions of rotating ring one, rotating ring two, and the helmet body, ensuring a stable lens angle and meeting observation needs under different lighting conditions. The operation is simple and quick, greatly improving work efficiency. The rainproof face mask features a cleverly designed drainage system along its edges, utilizing oncoming airflow to drive a spiral plate and impeller. The spiral plate guides the airflow, while the rotating impeller generates negative pressure, accelerating rainwater inflow and allowing it to drain through the vents. Simultaneously, an air-blowing device delivers airflow to the vents, preventing backflow and blockage of the vents. A rain shield guides rainwater towards the drainage channel, ensuring rapid drainage and preventing accumulation on the mask. This effectively protects officers' visibility in rainy weather and enhances operational safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the connecting frame structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the second lens structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation position of the quick-release component according to an embodiment of the present invention; Figure 6 This is an embodiment of the present invention. Figure 5 Enlarged schematic diagram of region A; Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged schematic diagram of region B; Figure 8 This is a schematic diagram of the rainproof face shield structure according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the internal structure of the rainproof face shield according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the internal structure of the drainage component according to an embodiment of the present invention.

[0019] In the diagram: 1. Helmet body; 101. Lens mounting area; 102. Sliding groove; 103. Flexible pad; 104. Motor; 105. Rotating shaft one; 106. Lens two; 107. Mounting ring; 108. Limiting groove one; 1081. Spring one; 1082. Limiting block; 2. Quick-release assembly; 201. Mounting cover; 2011. Bearing 1; 2012. Bearing 2; 202. Rotating ring 1; 2021. Limiting groove 2; 203. Rotating ring 2; 2031. Mounting groove; 2032. Cylinder; 204. Connecting bracket; 2041. Snap-fit ​​plate; 205. Lens 1; 3. Switching component; 301. Sealing block; 302. Connecting block; 303. Spring II; 4. Rainproof face shield; 401. Connecting strip; 402. Through groove; 403. Drain hole one; 404. Rain shield; 405. Air blowing hole; 406. Air blowing device; 5. Drainage assembly; 501. Mounting housing; 5011. Air vent; 5012. Water passage hole three; 502. Opening; 503. Rotating shaft two; 504. Spiral plate; 5041. Partition plate; 505. Impeller; 506. Water passage hole two. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figures 1-10 A police protective helmet includes a helmet body 1, and quick-release components 2 are symmetrically arranged on both sides of the outer wall of the helmet body 1; the quick-release components 2 include a mounting cover 201 fixed to the helmet body 1; The helmet body 1 includes a lens mounting area 101, and a sliding groove 102 is provided inside the helmet body 1, which is located above and communicates with the lens mounting area 101. Arc-shaped flexible pads 103 are fixed on both sides of the inner wall of the helmet body 1. A motor 104 is fixed in the gap between the two flexible pads 103 and the helmet body 1. Its output end passes through the sliding groove 102 and is fixed with a rotating shaft 105. The rotating shaft 105 is rotatably connected to the inner wall of the mounting cover 201. The outer walls of the two rotating shafts 105 are sequentially provided with a rotating ring 202 that is rotatably connected to them and a rotating ring 203 that is fixedly connected to them. One end of the rotating ring 202 is attached to the outer wall of the helmet body 1, and the other end is attached to the rotating ring 203. The rotating ring 202 and the rotating ring 203 pass through the mounting cover 201 and are respectively fixedly connected to two connecting frames 204 arranged vertically. A lens 205 is detachably installed between the two connecting frames 204. In the initial state, lens 205 is fixed by the clamping force between the connecting brackets 204. When it is necessary to disassemble lens 205, one of the rotating rings 202 is rotated to drive the connecting bracket 202 connected to it to rotate. The distance between the two connecting brackets 202 increases, so that lens 205 between the two connecting brackets is not affected by the clamping force, and thus lens 205 can be disassembled.

[0022] A second lens 106 is slidably connected in the sliding groove 102. The two ends of the second lens 106 are sleeved on the outer wall of the first rotating shaft 105 and rotatably connected by mounting rings 107. A linear drive is provided between the top of the second lens 106 and the inner wall of the sliding groove 102 for sliding the second lens 106. The helmet body 1 and the rotating ring 202 are respectively provided with interconnected limiting groove 108 and limiting groove 2021, and a switching component 3 is provided in the limiting groove 108 and limiting groove 2021. The rotating ring 203 has a through-hole mounting groove 2031 on its end face. A cylinder 2032 is fixed in the mounting groove 2031, and the cylinder output end faces and contacts the switching component 3. When cylinder 2032 performs work, it pushes switching component 3 to switch the connection relationship between rotating ring 1 202, rotating ring 203 and helmet body 1.

[0023] The rotating ring 203 and the mounting cover 201 are connected by bearings, with coaxial bearings 2011 and 2012. Both bearings 2011 and 2012 are embedded in pre-set annular bearing grooves on the inner wall of the mounting cover 201 and are arranged coaxially with the rotating shaft 105. Bearing 2011 is located inside bearing 2012, and its inner ring is interference-fitted with the outer wall of the rotating shaft 105, thus achieving connection between the rotating shaft 105 and the mounting cover 201. The rotating connection of bearing 105 is fixed to the inner wall of the mounting cover 201; the inner ring of bearing 2012 is interference-fitted with the outer wall of rotating ring 203, and the outer ring is also fixed to the inner wall of the mounting cover 201. The dual bearing structure provides limiting support for rotating shaft 105 and rotating ring 203 respectively, ensuring smooth and wobbly overall rotation. The cylinder 2032 is located between bearing 1011 and bearing 2012, making the installation structure more compact and avoiding interference between the cylinder and rotating parts.

[0024] The connecting frame 204 is an L-shaped plate, integrally formed from high-strength aluminum alloy. The longer end extends horizontally to support the lens 205, while the shorter end, facing away from the helmet body 1, is vertically fixed with a snap-fit ​​plate 2041. The snap-fit ​​plate 2041 is shorter than the longer end of the connecting frame 204. The lens 205 is snapped between the two connecting frames 204 and the snap-fit ​​plate 2041, forming a stable snap-fit ​​structure that facilitates quick disassembly and replacement. The lens 205 is a bulletproof and anti-fog lens with a scratch-resistant and wear-resistant coating to ensure reliability in harsh environments.

[0025] The width of the first limiting groove 108 is greater than the width of the second limiting groove 2021. The bottom of the first limiting groove 108 is fixed with a limiting block 1082 by a spring 1081. The limiting block 1082 is adapted to the width of the first limiting groove 108 and slides within it.

[0026] The switching component 3 includes two sealing blocks 301 that are slidably connected in the first limiting groove 108 and the second limiting groove 2021. A connecting block 302 is fixed on one side of the two sealing blocks 301. The connecting block 302 is a cylindrical metal rod. A second spring 303 is sleeved on the outer wall of the two connecting blocks 302. The two ends of the second spring 303 are welded and fixed to the two sealing blocks 301 respectively. Under normal conditions, the second spring 303 remains in a naturally extended state, so that the two sealing blocks 301 are in a separated state.

[0027] Among them, the sealing block 301 near the rotating ring 203 is fixedly connected to the output end of the cylinder 2032, and the sealing block 301 near the limiting groove 108 is in contact with the limiting block 1082.

[0028] When cylinder 2032 performs work, it pushes switching component 3 to switch the connection relationship between rotating ring one 202, rotating ring two 203 and helmet body 1. The specific switching logic is as follows: Cylinder retraction state: The output end of cylinder 2032 retracts, driving the sealing block 301 near the rotating ring 203 to move towards the rotating ring 203, so that it is embedded in the gap between the rotating ring 203 and the rotating ring 102. At this time, the spring 203 naturally extends, the two sealing blocks 301 separate, and the sealing block 301 near the limiting groove 108 disengages from the limiting groove 2021 and is only located in the limiting groove 108; the rotating ring 102 is released from the helmet body 1 and can rotate synchronously with the rotating ring 203 (because the rotating ring 203 is fixed to the rotating shaft 105), realizing the angle adjustment of the lens 105.

[0029] Cylinder extended state: The output end of cylinder 2032 extends, driving the sealing block 301 near the side of rotating ring 203 to move towards the side of the sealing block 301 near the side of limiting groove 108. Spring 203 is compressed and contracted, and the two connecting blocks 302 approach and contact each other. At the same time, the sealing block 301 near the side of limiting groove 108 is pushed, thereby squeezing the limiting block 1082 to compress the spring 1081, so that the sealing block 301 is partially embedded in the limiting groove 2021, thus fixing the helmet body 1 and rotating ring 102. At this time, the output end of cylinder 2032 remains extended, and its rod is located between rotating ring 203 and rotating ring 102, further locking the relative positions of the three to ensure the stability of the lens angle. At this time, lens 105 is exactly located at the lens mounting area 101.

[0030] It also includes a rainproof face shield 4, with snap-fit ​​strips 401 fixed at both the upper and lower ends of the rainproof face shield 4. The spacing between the snap-fit ​​strips 401 and the connecting frame 204 and the snap-fit ​​plate 2041 is adapted, and it can be quickly installed on the connecting frame 204 by snap-fit, replacing the lens 205 to achieve the rainproof function.

[0031] The rainproof face mask 4 has a drainage component 5 fixed to its edge for quickly draining rainwater from the surface of the face mask. A rectangular through groove 402 is opened at the center of the side end face of the rainproof face mask 4. The through groove 402 is arranged along the edge of the face mask. Several water holes 403 communicating with the drainage component 5 are opened at the bottom of the through groove 402. Several air blowing holes 405 corresponding to the positions of the water holes 403 are opened at the top of the through groove 402. The air blowing holes 405 are inclined holes that blow air towards the water holes 403. The air blowing holes 405 are connected to an air blowing device 406. The air blowing device 406 is a miniature air pump that is fixed to the inner wall of the rainproof face mask 4 by a bracket. It is used to deliver airflow to the air blowing holes 405 to prevent rainwater backflow and blockage of the water holes.

[0032] A rain shield 404 is fixed to the outer wall of the rainproof face shield 4. The rain shield 404 is an arc-shaped metal plate that is fixedly installed around the edge of the outer wall of the rainproof face shield 4 to block rainwater from directly impacting the face shield body and guide rainwater to the channel 402.

[0033] The drainage component 5 includes a mounting shell 501, which is fixedly connected to the rainproof face shield 4. The mounting shell 501 has an opening 502 facing the windward side of the helmet. A second rotating shaft 503 is rotatably connected to the opening 502. The second rotating shaft 503 is arranged laterally along the mounting shell 501. A spiral plate 504 and an impeller 505 are fixed to the outer wall of the second rotating shaft 503. The spiral plate 504 is located in front of the opening 502 compared to the impeller 505. The spiral plate 504 has an arc-shaped blade structure to guide the oncoming airflow and drive the second rotating shaft 503 to rotate at high speed under the action of the airflow. The impeller 505 is a centrifugal impeller. A second water passage hole 506 is opened inside the mounting shell 501. The impeller 505 communicates with the first water passage hole 403 through the second water passage hole 506. When the impeller 505 rotates, it generates negative pressure, which drives the first water passage hole 403 to generate suction, accelerating the inflow of rainwater.

[0034] The second water passage 506 is formed on the mounting shell 501 and communicates with the first water passage 403.

[0035] The spiral plate 504 and the impeller 505 are separated by a partition plate 5041. The partition plate 5041 is a circular metal plate that is welded and fixed to the inner wall of the mounting shell 501 and rotatably connected to the rotating shaft 503 via a bearing, thereby separating the air path and the water path to avoid airflow interference with rainwater discharge. The bottom of the mounting shell 501 is provided with an air hole 5011 corresponding to the position of the spiral plate 504 and a water passage hole 5012 corresponding to the position of the impeller 505. The air hole 5011 is used to discharge the airflow after driving the spiral plate 504, and the water passage hole 5012 is used to guide the collected rainwater to the lower outer side of the helmet for discharge, so as to prevent rainwater dripping and affecting vision.

[0036] Working principle: Wearing the helmet: Police officers correctly put the helmet body 1 on their heads. The curved flexible pad 103 fits the head and provides a comfortable wearing experience.

[0037] Initial state: At this time, lens 1 205 is fixed in the lens mounting area 101 by the clamping force between the two connecting brackets 204. Lens 2 106 is located in the sliding groove 102 and is controlled to slide out by a linear drive device. By activating cylinder 2032 to put it in a retracted state, the sealing block 301 on the side near the rotating ring 2 203 moves towards the rotating ring 2 203, so that it is embedded in the gap between the rotating ring 2 203 and the rotating ring 1 202. Spring 2 303 naturally extends, the two sealing blocks 301 separate, and the sealing block 301 on the side near the limiting groove 1 108 disengages from the limiting groove 2 2021 and is only located in the limiting groove 1 108. The rotating ring 1 202 is released from the helmet body 1, but at this time the position of lens 1 205 is fixed and does not affect normal use.

[0038] When police officers need to adjust the angle of the lens 205 according to actual needs: by starting the motor 104, its output end drives the rotating shaft 105 to rotate. Since the rotating ring 203 is fixedly connected to the rotating shaft 105, the rotating ring 203 rotates synchronously with the rotating shaft 105. Also, because the cylinder 2032 is in the retracted state, the rotating ring 202 is released from the helmet body 1 and can rotate synchronously with the rotating ring 203.

[0039] The rotation of rotating ring 203 drives the connecting bracket 204, which is indirectly connected to it through rotating ring 202, to rotate, thereby adjusting the angle of lens 205 to meet different lighting conditions or observation needs.

[0040] After adjusting the lens to a 205° angle, its position needs to be fixed: By controlling the extension of the output end of the cylinder 2032, the sealing block 301 near the side of the rotating ring 203 moves towards the sealing block 301 near the side of the limiting groove 108. The spring 203 is compressed and contracted, and the two connecting blocks 302 approach and contact each other.

[0041] Fixed rotating ring 202: Simultaneously, the sealing block 301 near the limiting groove 108 is pushed, thereby squeezing the limiting block 1082 to compress the spring 1081, causing the sealing block 301 to partially embed into the limiting groove 2021, thus fixing the helmet body 1 to the rotating ring 202. At this time, the output end of the cylinder 2032 remains extended, and its rod is located between the rotating ring 203 and the rotating ring 202, further locking the relative positions of the three and ensuring the stability of the lens 205 angle.

[0042] When lens 205 is damaged or needs to be replaced: by rotating one of the rotating rings 202, the connecting bracket 204 connected to it is rotated, so that the distance between the two connecting brackets 204 increases.

[0043] With the increased distance between the two connecting frames 204, the lens 205 between the two connecting frames is no longer affected by the clamping force, and police officers can easily remove the lens 205 from between the connecting frame 204 and the snap plate 2041.

[0044] The new lens 205 is snapped between the two connecting brackets 204 and the snap-fit ​​plate 2041 to form a stable snap-fit ​​structure, thus completing the replacement of lens 205.

[0045] In specific situations, such as when different types of lenses (e.g., 106) are required: Sliding lens 106: The sliding lens 106 is controlled by a linear drive device to slide within the sliding groove 102, so that it moves to a suitable position to cover or partially cover the lens mounting area 101 to meet different usage needs, such as using the lens 106 with special functions in strong light environments.

[0046] In rainy weather or situations where rain protection is required: Remove Lens 205: If Lens 205 is already installed on the helmet, remove it following the steps described above for removing Lens 205.

[0047] Install the rainproof face shield 4: Align the snap strips 401 at the top and bottom of the rainproof face shield 4 with the gap between the connecting frame 204 and the snap plate 2041, and quickly install the rainproof face shield 4 on the connecting frame 204 by snapping it on, so as to replace the lens 205 and realize the rainproof function.

[0048] The lens 106 is controlled by a linear drive device to slide within the sliding groove 102, so that it moves to a suitable position to cover or partially cover the lens mounting area 101.

[0049] After the rainproof face shield 4 is installed, when it rains: the rain shield 404 blocks rainwater from directly impacting the face shield body and guides the rainwater to the channel 402.

[0050] Activate the air blowing device 406 to deliver airflow to the air blowing hole 405. The air blowing hole 405 is an inclined hole that blows air towards the water passage hole 403 to prevent rainwater from flowing back and the water passage hole 403 from becoming blocked.

[0051] Drainage component 5 operation: After rainwater flows into the channel 402, it enters the drainage component 5 through the first water inlet 403. The oncoming airflow impacts the spiral plate 504, driving the second rotating shaft 503 to rotate at high speed. The spiral plate 504 has an arc-shaped blade structure, guiding the oncoming airflow. The impeller 505 is a centrifugal impeller, which generates negative pressure under the rotation of the second rotating shaft 503. This negative pressure is connected to the first water inlet 403 through the second water inlet 506, causing the first water inlet 403 to generate suction, accelerating the inflow of rainwater. The baffle 5041 separates the air and water paths, preventing airflow from interfering with rainwater discharge. The airflow after driving the spiral plate 504 is discharged through the air hole 5011, and the collected rainwater is guided to the lower outer side of the helmet through the third water inlet 5012, preventing rainwater dripping and obstructing vision.

[0052] When the helmet is attacked: the bulletproof and anti-fog function of the 205 lens and the overall protective structure of the helmet body 1 can provide effective protection for police officers and reduce injury.

[0053] Through the above workflow, this police protective helmet can meet the diverse needs of police officers in different usage environments and emergencies, providing reliable protection and a convenient user experience.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A police protective helmet, characterized in that, The helmet includes a helmet body, and quick-release components are symmetrically arranged on both sides of the outer wall of the helmet body; the quick-release components include mounting covers that are fixed to the helmet body. The helmet body includes a lens mounting area, and a sliding groove located above and communicating with the lens mounting area is provided in the helmet body; The inner wall of the helmet body is fixed with two arc-shaped flexible pads on both sides. A motor is fixed in the gap between the two flexible pads and the helmet body. Its output end passes through the sliding groove and the outer wall of the helmet body and is fixed with a rotating shaft. The rotating shaft is rotatably connected to the inner wall of the mounting cover. The outer walls of both rotating shafts are sequentially provided with a rotating ring 1 that is rotatably connected to them and a rotating ring 2 that is fixedly connected to them. One end of the rotating ring 1 is attached to the outer wall of the helmet body, and the other end is attached to the rotating ring 2. Two vertically arranged connecting frames are fixedly connected between the rotating ring one and the rotating ring two through the mounting cover and the lens mounting area. Lens one is detachably installed between the two connecting frames. A second lens is slidably connected in the sliding groove, and both ends of the second lens are fitted onto the outer wall of the first rotating shaft and rotatably connected by mounting rings. The helmet body and the rotating ring are respectively provided with an interconnected limiting groove 1 and a limiting groove 2, and a switching component is provided in the limiting groove 1 and the limiting groove 2. The rotating ring has mounting grooves through its two end faces, and a cylinder is fixed in the mounting grooves. The output end of the cylinder faces the switching component and is in contact with it. When the cylinder performs work, it pushes the switching component to switch the connection relationship between the rotating ring one, the rotating ring two, and the helmet body.

2. A police protective helmet according to claim 1, characterized in that, The rotating ring 2 and the mounting cover are connected by bearings with bearing 1 and bearing 2 on the same axis. Bearing 1 and bearing 2 are both embedded in the pre-set annular bearing groove on the inner wall of the mounting cover and are arranged on the same axis as the rotating shaft. The bearing one is located inside the bearing two, and its inner ring is interference-fitted with the outer wall of the rotating shaft one to realize the rotational connection between the rotating shaft one and the mounting cover, while the outer ring is fixed to the inner wall of the mounting cover. The inner ring of bearing two is interference-fitted with the outer wall of rotating ring two, and the outer ring is also fixed to the inner wall of the mounting cover. The cylinder is located between bearing one and bearing two.

3. A police protective helmet according to claim 1, characterized in that, The connecting frame is an L-shaped plate, with the longer end extending horizontally to support the first lens, and the shorter end facing away from the helmet body and a snap-fit ​​plate fixed vertically thereto. The length of the snap-fit ​​plate is shorter than the longer end of the connecting frame, and the first lens is snapped between the two connecting frames and the snap-fit ​​plate.

4. A police protective helmet according to claim 1, characterized in that, The width of the first limiting groove is greater than the width of the second limiting groove. The bottom of the first limiting groove is fixed with a limiting block by a spring. The limiting block is adapted to the width of the first limiting groove and slides within it.

5. A police protective helmet according to claim 1, characterized in that, The switching assembly includes two sealing blocks that are slidably connected in the first limiting groove and the second limiting groove. A connecting block is fixed on one side of the two sealing blocks. The connecting block is a cylindrical metal rod. A spring is sleeved on the outer wall of the two connecting blocks.

6. A police protective helmet according to claim 5, characterized in that, The two ends of the second spring are welded and fixed to the two sealing blocks respectively. Under normal conditions, the second spring remains in a naturally extended state, so that the two sealing blocks are separated. The sealing block near the second rotating ring is fixedly connected to the cylinder output end, and the sealing block near the first limiting groove is in contact with the limiting block.

7. A police protective helmet according to claim 1, characterized in that, It also includes a rainproof face shield, with snap-fit ​​strips fixed at both ends. The snap-fit ​​strips are adapted to the spacing between the connecting frame and the snap-fit ​​plate, and can be quickly installed on the connecting frame by snap-fit, replacing the lens.

8. A police protective helmet according to claim 6, characterized in that, The rainproof face mask is fixed with a drainage component on its edge for quickly draining rainwater from the surface of the face mask. A rectangular through groove is opened at the center of the edge of the rainproof face mask. The through groove is arranged along the edge of the face mask. Several water holes communicating with the drainage component are opened at the bottom of the through groove. Several air blowing holes corresponding to the positions of the water holes are opened at the top of the through groove. The air blowing holes are inclined holes that blow air in the direction of the water holes. The air blowing holes are all connected to an air blowing device.

9. A police protective helmet according to claim 8, characterized in that, The drainage assembly includes a mounting shell, which is fixedly connected to the rainproof face shield. The mounting shell has an opening facing the windward side of the helmet, and a second rotating shaft is rotatably connected to the opening. The second rotating shaft is arranged laterally along the mounting shell. A spiral plate and an impeller are fixed to the outer walls of the two rotating shafts, respectively. The spiral plate is located in front of the opening relative to the impeller, and the spiral plate has an arc-shaped blade structure. The impeller is a centrifugal impeller, and a second water passage hole is provided inside the mounting housing. The impeller communicates with the first water passage hole through the second water passage hole.

10. A police protective helmet according to claim 9, characterized in that, The spiral plate and the impeller are separated by a partition plate, which is a circular metal plate. The partition plate is welded and fixed to the inner wall of the mounting shell and is rotatably connected to the rotating shaft via a bearing. The bottom of the mounting housing is provided with an air hole corresponding to the position of the spiral plate and a water passage hole corresponding to the position of the impeller.

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