Protective assembly and safety hat device

Abstract

This invention discloses a protective component and a safety helmet device, relating to the technical field of safety protection devices. The protective component includes earmuffs and a connecting arm for connecting a safety helmet. One of the earmuffs and the connecting arm has a protruding sliding post, and the other has a locking groove. The opening of the locking groove extends in a strip shape, and multiple locking positions are distributed on the sidewall of the locking groove along its extension direction. The sliding post is slidably connected to the locking groove and engages with one of the locking positions. The technical solution provided by this invention aims to reduce the difficulty of adjusting the relative position of the earmuffs and the connecting arm, ensuring the ease of use of the protective component.

Description

Technical Field

[0001] This invention relates to the field of safety protection device technology, and in particular to a protective component and a safety helmet device. Background Technology

[0002] In high-noise work environments such as industrial production, construction, and transportation, hearing protection devices are typically worn to protect the hearing health of workers. Related technologies often involve attaching earmuffs to safety helmets for simultaneous wear. However, adjusting the relative position of the earmuffs and helmet in existing systems is difficult and inconvenient for users. Summary of the Invention

[0003] The main objective of this invention is to provide a protective component and helmet device that reduces the difficulty of adjusting the relative positions of the earmuffs and connecting arms, and ensures the ease of use of the protective component.

[0004] To achieve the above objectives, the protective component proposed in this invention includes earmuffs and a connecting arm, the connecting arm being used to connect to a safety helmet;

[0005] One of the earmuffs and the connecting arm is provided with a sliding post, and the other is provided with a snap-fit ​​groove. The opening of the snap-fit ​​groove extends in a strip shape. In the extension direction of the snap-fit ​​groove, multiple locking positions are distributed on the side wall of the snap-fit ​​groove. The sliding post is slidably connected to the snap-fit ​​groove and can be selected to snap into one of the locking positions.

[0006] In one embodiment, the sliding pin is disposed on the earcup, the snap-fit ​​groove is disposed on the connecting arm, and the extending direction of the snap-fit ​​groove is consistent with the extending direction of the connecting arm.

[0007] In one embodiment, the connecting arm includes an arm body and an adjusting cover plate. The adjusting cover plate is closably connected to the arm body and forms the snap-fit ​​groove with the arm body. The opening of the snap-fit ​​groove is disposed on the arm body, and the locking position is arranged on the opposite side of the adjusting cover plate and the arm body.

[0008] In one embodiment, the adjusting cover and the arm body extend in the same direction. In the extension direction of the connecting arm, at least one of the arm body and the adjusting cover has a plurality of limiting grooves, and at least one of the limiting grooves is configured with a locking position.

[0009] In one embodiment, the arm body has an installation opening, the installation opening and the slot of the snap-fit ​​groove extend in the same direction, the adjustment cover is closable and covers the installation opening, at least one of the two ends of the adjustment cover is snapped into the arm body, and the other is snapped into or rotatably connected to the arm body.

[0010] In one embodiment, corresponding to the end of the mounting port, the arm body is provided with a locking hole and a guide groove, the end of the adjusting cover is provided with a locking protrusion, one end of the guide groove passes through the mounting port and the other end communicates with the locking hole, and the locking protrusion is slidably connected to the guide groove and locked into the locking hole.

[0011] In one embodiment, the slot of the snap-fit ​​groove includes a snap-fit ​​inlet and an adjustment port. The slide column includes a head with a larger diameter and a neck with a smaller diameter. The width of the adjustment port is smaller than the width of the snap-fit ​​inlet and smaller than the head diameter of the slide column. The width of the snap-fit ​​inlet is larger than the head diameter of the slide column. The adjustment cover plate has a limiting protrusion on one side of the snap-fit ​​groove, and the limiting protrusion is opposite to the snap-fit ​​inlet.

[0012] In one embodiment, the earmuff includes a shell and a sound-absorbing element. The shell has a receiving cavity, and at least a portion of the cavity wall is formed with a honeycomb-shaped noise-reducing structure. The sound-absorbing element is installed in the receiving cavity and conforms to the cavity wall.

[0013] In one embodiment, the protective assembly further includes a warning component and a protective cover. The cover has a mounting groove formed in the cavity wall of the receiving cavity. The noise reduction structure is located outside the mounting groove. The sidewall of the mounting groove is continuously arranged. The warning component is fixed inside the mounting groove. The cover is configured as a warning area at least in the portion corresponding to the mounting groove. The protective cover is sealed and covered at the opening of the mounting groove.

[0014] In one embodiment, the earmuff further includes a cover, the cover having an opening communicating with the receiving cavity, the periphery of the cover and the periphery of the opening being sealed together, and the cover having a material replacement port for taking out and putting in the sound-absorbing component.

[0015] The present invention also proposes a safety helmet device, the safety helmet device comprising a safety helmet and protective components as described above, wherein the connecting arm is movably connected to the safety helmet.

[0016] The technical solution of this invention integrates earmuffs stably onto a safety helmet by connecting connecting arms to both sides. Specifically, the earmuffs may have a protruding sliding post on the outer side, while the connecting arm has a corresponding strip-shaped locking groove at its end; alternatively, the sliding post can be mounted on the connecting arm, with the locking groove correspondingly on the earmuff, and their positions can be interchanged. The locking groove has a narrow, elongated opening, facilitating smooth insertion and sliding of the sliding post along its extension direction. Furthermore, multiple locking positions are spaced along the extension direction of the groove on at least one side of the groove wall. Each locking position can be a recess, groove, or a partially narrowed structure, providing a clear positioning point. When the user adjusts the position of the earmuffs relative to the connecting arm according to their head shape or wearing comfort needs, only appropriate external force needs to be applied to slide the sliding post within the locking groove, allowing for quick switching between multiple locking positions. After releasing the external force, the sliding post automatically engages in the currently selected locking position, achieving a secure connection and preventing accidental displacement due to vibration or external force during use. This improves the ease of adjusting the relative position of the earmuffs and connecting arms, which in turn reduces the difficulty of adjusting the position of the earmuffs relative to the helmet, ensuring the ease of use of the protective components. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of an embodiment of the protective component provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the middle connecting arm; Figure 3 for Figure 2 Schematic diagram of the structure of the middle arm body; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 for Figure 1 Schematic diagram of the structure of the adjusting cover plate; Figure 6 for Figure 1 Schematic diagram of the middle cover; Figure 7 for Figure 1 A diagram illustrating the explosion of the middle earcup.

[0019] Explanation of icon numbers: 100. Housing; 101. Receiving cavity; 110. Mounting slot; 111. Power port; 120. Power connection channel; 130. Protective cover; 140. Warning area; 150. Noise reduction structure; 160. Cover opening; 170. Sliding column; 200. Warning component; 210. Electronic control board; 220. Energy storage component; 230. Flexible circuit board; 301. Charging component; 302. Switch button; 401. Earmuff pad; 402. Sound-absorbing component; 500. Connecting arm; 510. Connecting seat; 520. Arm body; 521. Mounting port; 522. Guide groove; 523. Locking hole; 530. Adjusting cover plate; 531. Limiting protrusion; 532. Locking protrusion; 540. Locking groove; 541. Locking inlet; 542. Adjusting port; 550. Limiting groove; 600. Cover; 610. Material changing port; 700. Ear cover.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] This invention proposes a protective component.

[0025] Please refer to Figure 1 , Figure 2 and Figure 6 In one embodiment of the present invention, the protective component includes earmuffs 700 and connecting arms 500, the connecting arms 500 being used to connect to a safety helmet; One of the earmuffs 700 and the connecting arm 500 is provided with a sliding post 170, and the other is provided with a snap-fit ​​groove 540. The groove opening of the snap-fit ​​groove 540 extends in a strip shape. In the extension direction of the snap-fit ​​groove 540, multiple snap-fit ​​positions are distributed on the groove sidewall of the snap-fit ​​groove 540. The sliding post 170 is slidably connected to the snap-fit ​​groove 540 and can be snapped into one of the snap-fit ​​positions.

[0026] The technical solution of this invention involves connecting connecting arms 500 to both sides of the safety helmet, thereby stably integrating the earmuffs 700 onto the helmet. Specifically, the earmuffs 700 may have a protruding sliding post 170 on their outer side, while the end of the connecting arm 500 has a corresponding strip-shaped locking groove 540; alternatively, the sliding post 170 may be positioned on the connecting arm 500, and the locking groove 540 may be correspondingly provided on the earmuff 700, with their positions interchangeable. The opening of the locking groove 540 is elongated and narrow, facilitating the smooth insertion and sliding of the sliding post 170 along the extension direction of the groove opening. Furthermore, on at least one side of the locking groove 540, multiple locking positions are distributed at intervals along the extension direction of the groove opening. Each locking position may be in the form of a recess, a groove, or a partially narrowed structure, providing a clear positioning point. When a user adjusts the position of the earcups 700 relative to the connecting arm 500 according to their head shape or wearing comfort needs, only appropriate external force needs to be applied to slide the slide post 170 within the locking groove 540. This allows for quick switching between multiple locking positions. After releasing the external force, the slide post 170 automatically engages in the currently selected locking position for a secure connection, preventing accidental displacement due to vibration or external force during use. This improves the ease of adjusting the relative position of the earcups 700 and the connecting arm 500, thus reducing the difficulty of adjusting the position of the earcups 700 relative to the helmet and ensuring the ease of use of the protective components.

[0027] It should be noted that the locking position of the sliding post 170 and the locking groove 540 is at the end of the sliding post 170. Simultaneously, the end of the sliding post 170 engages with the side wall of the locking groove 540, resulting in a large contact surface. This allows the sliding post 170 to maintain a stable sliding posture when switching between different locking positions in the locking groove 540. Furthermore, the stable deformation capability of the side wall of the locking groove 540 also ensures the stability of the sliding post 170 in any locking position. This can be understood as the opening of the locking groove 540 being opposite to the earmuff 700, and the extension direction of the opening of the locking groove 540 being consistent with or at an angle to the extension direction of the connecting arm 500. This ensures that when the sliding post 170 of the earmuff 700 slides within the locking groove 540, the position of the earmuff 700 relative to the safety helmet can be adjusted.

[0028] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 6 A sliding pin 170 is disposed on the earcup 700, and a locking groove 540 is disposed on the connecting arm 500. The extending direction of the locking groove 540 is consistent with the extending direction of the connecting arm 500. This can be understood as the extending direction of the locking groove 540 being the extending direction of its opening, and the opening of the locking groove 540 facing the earcup 700, allowing the sliding pin 170 on the earcup 700 to be inserted and slide along the length of the groove. On at least one side of the locking groove 540, multiple locking positions are spaced apart along its extending direction. These locking positions are constructed as recessed structures capable of forming a releasable locking engagement with the sliding pin 170. When the user needs to adjust the vertical position of the earcup 700 relative to the helmet, pushing the earcup 700 causes the sliding pin 170 to slide within the locking groove 540 to the target locking position, after which it is released. The sliding pin 170 then embeds into the locking position under elastic reset or structural self-locking action, achieving quick and stable positioning. Furthermore, the extension direction of the snap-fit ​​groove 540 is consistent with the extension direction of the connecting arm 500, so that the adjustment path of the earcup 700 naturally matches the installation posture of the connecting arm 500, improving the intuitiveness and smoothness of the adjustment operation. Of course, in other embodiments, the sliding post 170 may be disposed on the connecting arm 500, and the snap-fit ​​groove 540 may be disposed on the earcup 700.

[0029] Furthermore, in this embodiment, please refer to Figure 2 , Figure 3 and Figure 5The connecting arm 500 includes an arm body 520 and an adjusting cover plate 530. The adjusting cover plate 530 is closably connected to the arm body 520 and forms a locking groove 540 with the arm body 520. The opening of the locking groove 540 is located on the arm body 520, and locking positions are provided on opposite sides of the adjusting cover plate 530 and the arm body 520. It should be noted that the adjusting cover plate 530 can be detachably installed on the arm body 520, or it can be rotatable at one end and detachably connected to the arm body 520 at the other end. The adjusting cover plate 530 is closably connected to one side of the arm body 520 by means of hinge, snap, or thread. When the adjusting cover plate 530 is closed, it and the arm body 520 together form a locking groove 540 for accommodating the sliding column 170. The slot of the snap-fit ​​groove 540 is opened on the arm body 520 for the insertion of the sliding post 170 provided on the ear cup 700. The adjusting cover plate 530 and the inner side of the arm body 520 are respectively provided with mutually cooperating locking positions, or at least one of them is provided with multiple locking positions at intervals along the extension direction of the snap-fit ​​groove 540, so as to achieve stable snap-fit ​​when the sliding post 170 slides to any position. Thus, when assembling the connecting arm 500 and the connecting ear cup 700, the adjusting cover 530 can be opened to allow the sliding post 170 to slide into the locking groove 540 to the predetermined locking position, after which the adjusting cover 530 can be closed. When adjusting the position of the ear cup 700, the position of the sliding post 170 can be slid within the locking groove 540. Alternatively, if there are foreign objects in the locking groove 540 causing the sliding post 170 to become stuck, the adjusting cover 530 can be opened to clean the foreign objects so that the sliding post 170 can be adjusted, thereby improving ease of use. Of course, in other embodiments, the locking groove 540 can also be integrally formed on the connecting arm 500.

[0030] Specifically, in this embodiment, please refer to Figures 3 to 5The adjusting cover plate 530 and the arm body 520 extend in the same direction. In the extending direction of the connecting arm 500, at least one of the arm body 520 and the adjusting cover plate 530 has multiple limiting grooves 550, and at least one limiting groove 550 is equipped with a locking position. It can be understood that the adjusting cover plate 530 is closably connected to one side of the arm body 520, and together they form a locking groove 540 for accommodating the sliding post 170 of the earmuff 700; and each limiting groove 550 is equipped with a locking position to cooperate with the sliding post 170 to achieve multi-position positioning. When the sliding post 170 is inserted into the locking groove 540 formed by the arm body 520 and the adjusting cover plate 530, the user can slide the earmuff 700 along the extending direction of the connecting arm 500, so that the sliding post 170 aligns with the limiting groove 550 at the desired position and is engaged with the corresponding locking position, thereby completing the adjustment of the height or angle of the earmuff 700. It should be noted that at least one of the opposing surfaces of the arm body 520 and the adjusting cover 530, which can be one or both surfaces, has a wavy limiting groove 550, such as a semi-circular recess or a stepped bayonet. Each limiting groove 550, when engaged with the sliding post 170, forms a stable locking position, allowing the earmuff 700 to be precisely positioned in multiple preset positions. This ensures the stability of the locking position's engagement with the sliding post 170 and facilitates initial assembly, position adjustment, and subsequent maintenance. Without loss of generality, the connecting arm 500 also includes a connecting seat 510. The end of the arm body 520 furthest from the earmuff 700 is connected to the connecting seat 510. The connecting seat 510 is movably mounted on the helmet, allowing for both a wearing state where the earmuff 700 is tightly against the ear and a relaxed state where the earmuff 700 is spaced apart from the ear.

[0031] In one embodiment, please refer to Figure 2 , Figure 4 and Figure 5The arm body 520 has an installation port 521. The installation port 521 and the slot of the snap-fit ​​groove 540 extend in the same direction. An adjusting cover 530 is closable and covers the installation port 521. At least one end of the adjusting cover 530 is snapped into the arm body 520, and the other end is snapped into or rotatably connected to the arm body 520. This can be understood as either both ends of the adjusting cover 530 being snapped into the installation port 521, or one end of the adjusting cover 530 being snapped into the installation port 521, and the other end being rotatably connected to the installation port 521, thus achieving stable closure and convenient opening of the adjusting cover 530. When assembling the earcups 700 and connecting arm 500, the adjusting cover 530 can be opened, and the sliding pin 170 on the earcup 700 can be inserted into the locking groove 540 through the opening of the locking groove 540. The pin can then slide along the extension direction of the groove to the target locking position. The adjusting cover 530 is then closed, ensuring its two ends are securely connected to the arm body 520, thus confining the sliding pin 170 to the selected locking position. When cleaning foreign objects from the locking groove 540, the adjusting cover 530 is opened, allowing the foreign objects to dislodge from the mounting opening 521. The sliding pin 170 is then adjusted to the predetermined locking position, and the adjusting cover 530 is closed again at the mounting opening 521. This ensures reliable positioning and anti-detachment performance of the sliding pin 170 within the locking groove 540. Furthermore, the design of the adjusting cover 530, which can be opened and closed at the mounting opening 521, improves the ease of assembly and cleaning.

[0032] Furthermore, in this embodiment, please refer to Figures 3 to 5 Corresponding to the end of the mounting port 521, the arm body 520 is provided with a locking hole 523 and a guide groove 522, and the end of the adjusting cover 530 is provided with a locking protrusion 532. One end of the guide groove 522 passes through the mounting port 521, and the other end connects to the locking hole 523. The locking protrusion 532 is slidably connected to the guide groove 522 and locked into the locking hole 523. It can be understood that when the user closes the adjusting cover 530, the locking protrusion 532 first slides into the groove through the inlet of the guide groove 522 and moves along the guide groove 522 towards the locking hole 523. After it is in place, it automatically or under slight pressure locks into the locking hole 523, thereby firmly locking one end of the adjusting cover 530 to the arm body 520. When opening, the operation is reversed. The cover can be opened by sliding the locking protrusion 532 along the guide groove 522 to disengage from the locking hole 523. Thus, through the synergistic effect of the guide groove 522 and the locking hole 523, not only is a clear movement path and operating feel provided for the opening and closing of the adjustment cover 530, but also reliable locking in the closed state is ensured to prevent the adjustment cover 530 from loosening due to vibration; at the same time, no additional fasteners are required, simplifying the assembly structure and improving the efficiency of disassembly and assembly as well as the ease of use.

[0033] In one embodiment, please refer to Figures 2 to 5The slot of the snap-fit ​​groove 540 includes a snap-fit ​​inlet 541 and an adjustment port 542. The slide post 170 includes a head with a larger diameter and a neck with a smaller diameter. The width of the adjustment port 542 is smaller than the width of the snap-fit ​​inlet 541 and smaller than the head diameter of the slide post 170. The width of the snap-fit ​​inlet 541 is larger than the head diameter of the slide post 170. The adjustment cover plate 530 has a limiting protrusion 531 protruding on one side of the snap-fit ​​groove 540. The limiting protrusion 531 is opposite to the snap-fit ​​inlet 541. This can be understood as follows: the width of the locking inlet 541 is greater than the diameter of the head of the sliding post 170, allowing the sliding post 170 to be laterally inserted into the locking groove 540 from this point. The width of the adjustment port 542 is smaller than the diameter of the head of the sliding post 170 but larger than the diameter of the neck, allowing the neck of the sliding post 170 to slide freely along the adjustment port 542 after insertion for position adjustment, while the head is confined inside the locking groove 540 and cannot be removed. The combination of the sliding post 170, with its larger diameter head and smaller diameter neck, forms a stepped structure, which, combined with the widened groove design, enables one-time insertion and limited sliding. Simultaneously, when the adjustment cover 530 covers the mounting opening 521, its inner surface has a protruding limiting protrusion 531 facing the locking inlet 541. This protrusion seals the locking inlet 541 after the adjustment cover 530 is closed, preventing the sliding post 170 from accidentally dislodging from the locking inlet 541, thereby improving connection reliability without adding an additional locking structure. This simplifies the assembly process. Simply align the slide column 170 with the card inlet 541 and push it in, then close the adjustment cover 530 to complete the installation and limiting. It also ensures the stability and safety of the slide column 170 when it slides within the adjustment port 542, avoiding the risk of it falling off due to vibration or external force during use.

[0034] In one embodiment, please refer to Figure 1 , Figure 6 and Figure 7The earmuff 700 includes a shell 100 and a sound-absorbing component 402. The shell 100 has a receiving cavity 101, and at least a portion of the cavity wall of the receiving cavity 101 is formed with a honeycomb-shaped noise reduction structure 150. The sound-absorbing component 402 is installed in the receiving cavity 101 and conformally abuts against the cavity wall of the receiving cavity 101. It can be understood that the inner bottom wall or side wall of the receiving cavity 101 is formed with a honeycomb-shaped noise reduction structure 150. The honeycomb structure is composed of multiple regularly or irregularly arranged recessed units, which not only increases the surface area of ​​the cavity wall, but also extends the sound wave propagation path through porous resonance and sound wave scattering effect, and enhances sound energy dissipation to attenuate noise. At the same time, the sound-absorbing component 402 is made of a flexible porous material, and its shape matches the internal contour of the receiving cavity 101. It is installed in the receiving cavity 101 and conformally and tightly abuts against the cavity wall with the honeycomb-shaped noise reduction structure 150, thereby eliminating assembly gaps and preventing sound waves from being reflected or leaking between the sound-absorbing component 402 and the shell 100. Thus, through the synergistic effect of the honeycomb noise reduction structure 150 and the conformally fitted sound-absorbing component 402, the acoustic sealing and noise reduction performance of the earmuff 700 are improved. The honeycomb noise reduction structure 150 can cover the entire inner wall of the shell 100, or it can be distributed according to the layout within the receiving cavity 101, such as being staggered from the mounting groove 110 and warning area 140 described below, to reduce costs and avoid interference while ensuring noise reduction effectiveness. It should be noted that the peripheral wall of the sound-absorbing component 402 conforms to the interior of the receiving cavity 101, presenting the shape of the receiving cavity 101 near the opening 160 of the earmuff 100, without any protruding or relatively protruding parts, to ensure the sound absorption effect of the sound-absorbing component 402 at the opening 160.

[0035] Furthermore, in this embodiment, please refer to Figure 6 and Figure 7The protective assembly also includes a warning component 200 and a protective cover 130. A mounting groove 110 is formed in the cavity wall of the receiving cavity 101 of the housing 100. A noise reduction structure 150 is located outside the mounting groove 110. The sidewalls of the mounting groove 110 are continuously arranged. The warning component 200 is fixed inside the mounting groove 110. At least a portion of the housing 100 corresponding to the mounting groove 110 is designated as a warning area 140. The protective cover 130 is a sealing cover located at the opening of the mounting groove 110. It can be understood that the sidewalls of the mounting groove 110 have a continuous closed structure to ensure good sealing and structural strength. This can be achieved by the sidewalls themselves being continuously closed, or by providing a seal at the opening of the sidewalls to ensure a circumferential seal of the mounting groove 110. The honeycomb-shaped noise reduction structure 150 is located in the cavity wall area of ​​the receiving cavity 101 outside the mounting groove 110, avoiding interference with the internal space of the mounting groove 110 and ensuring stable installation of the warning component 200. The warning component 200 is fixed within the mounting slot 110, and its visibility enhances the visibility of workers in low-light or complex environments, thereby strengthening the safety warning effect. Correspondingly, at least the portion of the cover 100 corresponding to the area of ​​the mounting slot 110 is defined as the warning area 140, and its appearance design enhances the visual cueing function. Furthermore, the protective cover 130 is sealed at the opening of the mounting slot 110, achieving reliable sealing through snap-fit, adhesive, or ultrasonic welding, preventing the warning component 200 from failing due to vibration, moisture, or dust intrusion during use. Thus, while ensuring the noise reduction effect of the noise reduction structure 150, reliable protection of the warning component 200 is achieved, thereby improving the stability of the protective component in use.

[0036] Without loss of generality, the mounting groove 110 has a continuous sidewall with an overcurrent port 111. The warning component 200 is securely installed within the mounting groove 110, and its conductor extends through the overcurrent port 111 to the inside or outside of the housing 100 to achieve electrical connection with the control module. The warning component 200 can be an LED bead, a buzzer, or a miniature vibration motor, etc., to provide a warning function and ensure user safety during operation. The conductor connecting the warning component 200 can be a flexible circuit cable or an insulated wire. After the conductor passes through the overcurrent port 111, the protective cover 130 closes the overcurrent port 111 against the conductor to seal the overcurrent port 111, thereby ensuring a protective sealing effect within the mounting groove 110. It should be noted that the warning component 200 is fixedly installed in the mounting groove 110. It can be fixed in the mounting groove 110 by means of screw fastening, snap-fitting or fusion welding. In addition, the protective cover 130 can also be provided to abut the top to abut and fix the warning component 200 in the mounting groove 110.

[0037] In one embodiment, please refer to Figure 6 and Figure 7The cavity wall of the receiving cavity 101 also forms an electrical connection channel 120, which connects to the power outlet 111. One side of the channel sidewall of the electrical connection channel 120 is flush with the opening of the mounting groove 110, and the other side is conformally arranged to the cavity wall of the receiving cavity 101. The protective cover 130 is sealed on the electrical connection channel 120. It can be understood that the electrical connection channel 120 is connected to the power outlet 111 of the mounting groove 110, used to guide the conductors led out from the warning component 200 to extend safely and orderly to the position outside the mounting groove 110 inside the housing 100 for electrical connection, providing power or control commands to the warning component 200. The power connection channel 120 and the groove of the mounting groove 110 have openings in the same direction. One side of the channel wall of the power connection channel 120 is flush with the groove of the mounting groove 110, while the other side extends in accordance with the contour of the cavity wall of the receiving cavity 101. This ensures that the protective cover 130 can be smoothly placed on the groove of the mounting groove 110 and the power connection channel 120, thus ensuring the sealing effect of the protective cover 130 on the mounting groove 110 and the power connection channel 120. The mounting groove 110, the power outlet 111, and the power connection channel 120 are all covered by the protective cover 130 to form a continuous and closed sealing area. This further prevents moisture or dust from seeping into the mounting groove 110 along the conductor path. At the same time, when the earmuff 700 is dropped or squeezed, the power connection channel 120 plays a limiting and buffering role for the conductor, preventing the conductor from breaking due to repeated bending or pulling at the power outlet 111, thereby improving the stability of the earmuff 700 in use.

[0038] Furthermore, in this embodiment, please refer to Figure 6 and Figure 7 The power connection channel 120 is filled with sealant. This can be understood as the sealant covering the outer periphery of the flexible circuit board 230, which is inserted therethrough, and tightly adhering to the sidewalls of the power connection channel 120 and the power port 111, forming a continuous, seamless sealing barrier. By filling with sealant, any gaps that may exist between the flexible circuit board 230 and the inner wall of the power connection channel 120 are effectively sealed, completely blocking the channels through which external pollutants such as moisture, sweat, and dust can enter the mounting groove 110 or the earpiece 700 along the path of the flexible circuit board 230. Furthermore, it fixes and buffers the position of the flexible circuit board 230 within the power connection channel 120, preventing displacement, wear, or solder joint breakage due to vibration, drops, or repeated bending.

[0039] In one embodiment, please refer to Figure 6 and Figure 7The housing 100 has a cover opening 160, and the mounting groove 110 is located at the bottom of the receiving cavity 101. A switch button 302 and / or a charging component 301 are located on the housing 100 near the cover opening 160. The warning component 200 includes an electronic control board 210 and an energy storage component 220 disposed on the electronic control board 210. The conductor is configured as a flexible circuit board 230 electrically connected to the electronic control board 210, and passes through a power outlet 111 and a power connection channel 120 in sequence to electrically connect with the switch button 302 and / or the charging component 301. The flexible circuit board 230 extends along the cavity wall of the receiving cavity 101. In essence, the mounting groove 110 is located at the bottom of the receiving cavity 101 relative to the cover opening 160, and the switch button 302 and / or the charging component 301 are integrated into the housing 100 at an easily accessible location near the cover opening 160, facilitating user operation of the device or charging maintenance. The warning component 200 includes an electronic control board 210 and an energy storage component 220 integrated thereon. The energy storage component 220, such as a battery or supercapacitor, enables the warning component 200 to continue operating without charging, improving the ease of use of the earmuffs 700. The conductor connecting the electronic control board 210 is a flexible circuit board 230. The flexible circuit board 230 not only has good bending and conductivity stability, but its layout path also follows the shape of the cavity wall of the receiving cavity 101, sequentially passing through the power port 111 of the mounting groove 110 and the power connection channel 120, and finally exiting from the opening at the end of the support arm of the protective cover 130 to achieve electrical connection with the switch button 302 and / or the charging component 301 near the cover opening 160. This reduces the impact on the spatial layout within the receiving cavity 101, ensures the filling rate of the sound-absorbing material within the receiving cavity 101, and thus improves the noise reduction effect of the earmuffs 700.

[0040] In one embodiment, please refer to Figure 6 and Figure 7 The charging component 301 is configured as a wireless magnetic charging structure and is fixed to the cavity wall of the receiving cavity 101. It can be understood that the charging component 301 includes an embedded magnetic coil and a matching magnet array, and is designed to conform to the curved contour of the local cavity wall of the receiving cavity 101. It is tightly fixed to the inner side of the cavity wall through injection molding, snap-fit, or adhesive methods, ensuring that its shape smoothly fits the cavity wall without protrusions or gaps. This not only effectively utilizes the limited space inside the cover 100, avoiding interference with the sound-absorbing component 402, the warning component 200, or the honeycomb noise reduction structure 150, but also allows for automatic alignment and stable adsorption by magnetic force when the user brings the earcups 700 close to the external magnetic charging base, achieving fast and accurate wireless charging and significantly improving ease of use. At the same time, since the wireless magnetic charging structure does not require an exposed charging interface, the cover 100 can remain completely sealed, preventing dust, sweat, or moisture from entering, thus improving waterproofing and noise reduction effects.

[0041] In one embodiment, please refer to Figure 6 and Figure 7The earmuff 700 also includes a cover 600. The housing 100 has a cover opening 160 that communicates with the receiving cavity 101. The periphery of the cover 600 and the periphery of the cover opening 160 are sealed together. The cover 600 has a replacement port 610 for taking out and putting in the sound-absorbing component 402. It can be understood that the cover 600 is sealed to the cover opening 160 by means of snaps, threads, magnetic attraction, or ultrasonic welding, ensuring the seal of the cover 600 to the periphery of the cover opening 160. Combined with the replacement port 610 on the cover 600, it allows users to easily remove aged, contaminated, or failed sound-absorbing components 402 and replace them with new ones, without affecting the connection structure between the cover 600 and the housing 100, thus ensuring the seal and connection stability of the cover 600 to the periphery of the cover opening 160. Without loss of generality, the noise-canceling earmuffs 700 also include ear pads 401, which are detachably mounted on the side of the cover 600 away from the housing 100. The ear pads 401 are made of soft, skin-friendly materials such as memory foam covered with protein leather or silicone. They are detachably installed on the side of the cover 600 away from the shell 100, directly contacting the user's ear and the outer surface of their face. Specifically, the ear pads 401 are quickly connected and separated from the cover 600 through adhesives, snaps, etc., ensuring a snug fit and sealing during wear to maintain acoustic sealing. They also allow users to remove them regularly for cleaning, replacement, or to choose different materials based on season or comfort preferences. This avoids hygiene problems caused by the accumulation of sweat, oil, or bacteria on the ear pads 401 over long-term use, as well as technical challenges such as aging and deformation affecting sealing and wearing comfort. At the same time, since the ear pads 401 are independent of the main sealing structure of the shell 100 and the cover 600, their replacement will not damage the ultrasonically welded cavity 101, ensuring long-term stable noise reduction performance. This balances the convenience of hygiene maintenance, personalized fit needs, and noise reduction reliability.

[0042] This invention also proposes a safety helmet device, which includes a protective component. The specific structure of the protective component is as described in the above embodiments. Since this safety helmet device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. The safety helmet device also includes a safety helmet, with a connecting arm movably connected to the safety helmet and adapted to be opposite the user's ears. This arm can be detachable, rotatable, or a combination of detachable and rotatable connections.

[0043] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A protective component, characterized in that, Includes earmuffs and a connecting arm for attaching the helmet; One of the earmuffs and the connecting arm is provided with a sliding post, and the other is provided with a snap-fit ​​groove. The opening of the snap-fit ​​groove extends in a strip shape. In the extension direction of the snap-fit ​​groove, multiple locking positions are distributed on the side wall of the snap-fit ​​groove. The sliding post is slidably connected to the snap-fit ​​groove and can be selected to snap into one of the locking positions.

2. The protective component as described in claim 1, characterized in that, The sliding pin is disposed on the ear cup, and the snap-fit ​​groove is disposed on the connecting arm. The extending direction of the snap-fit ​​groove is consistent with the extending direction of the connecting arm.

3. The protective component as described in claim 2, characterized in that, The connecting arm includes an arm body and an adjusting cover plate. The adjusting cover plate is closably connected to the arm body and forms the snap-fit ​​groove with the arm body. The opening of the snap-fit ​​groove is located on the arm body, and the locking position is arranged on the opposite side of the adjusting cover plate and the arm body.

4. The protective component as described in claim 3, characterized in that, The adjusting cover and the arm body extend in the same direction. In the extension direction of the connecting arm, at least one of the arm body and the adjusting cover has a plurality of limiting grooves, and at least one of the limiting grooves is configured with a locking position.

5. The protective component as described in claim 3, characterized in that, The arm body has an installation opening, and the installation opening and the slot of the snap-fit ​​groove extend in the same direction. The adjustment cover is closable and covers the installation opening. At least one end of the adjustment cover is snapped into the arm body, and the other end is snapped into or rotatably connected to the arm body.

6. The protective component as described in claim 5, characterized in that, Corresponding to the end of the mounting port, the arm body is provided with a locking hole and a guide groove, and the end of the adjusting cover is provided with a locking protrusion. One end of the guide groove passes through the mounting port and the other end is connected to the locking hole. The locking protrusion is slidably connected to the guide groove and locked into the locking hole.

7. The protective component as described in claim 3, characterized in that, The slot of the snap-fit ​​groove includes a snap-fit ​​inlet and an adjustment outlet. The slide column includes a head with a larger diameter and a neck with a smaller diameter. The width of the adjustment outlet is smaller than the width of the snap-fit ​​inlet and smaller than the head diameter of the slide column. The width of the snap-fit ​​inlet is larger than the head diameter of the slide column. The adjusting cover plate has a limiting protrusion on one side of the snap-fit ​​groove, and the limiting protrusion is opposite to the snap-fit ​​inlet.

8. The protective component as described in any one of claims 1 to 7, characterized in that, The earmuffs include a shell and a sound-absorbing component. The shell has a receiving cavity, and at least a portion of the cavity wall is formed with a honeycomb-shaped noise reduction structure. The sound-absorbing component is installed in the receiving cavity and conforms to the cavity wall.

9. The protective component as claimed in claim 8, characterized in that, The protective assembly further includes a warning component and a protective cover. The cover has a mounting groove formed in the cavity wall of the receiving cavity. The noise reduction structure is located outside the mounting groove. The sidewall of the mounting groove is continuously arranged. The warning component is fixed in the mounting groove. The cover is set as a warning area at least in the part corresponding to the mounting groove. The protective cover is sealed and covered at the opening of the mounting groove. And / or, the earmuff further includes a cover, the cover having an opening communicating with the receiving cavity, the periphery of the cover and the periphery of the opening being sealed together, the cover having a material replacement port for taking out and putting in the sound-absorbing component.

10. A safety helmet device, characterized in that, Includes a safety helmet and a protective assembly as described in any one of claims 1 to 9, wherein the connecting arm is movably connected to the safety helmet.

Images