Safety protection assembly

Abstract

The invention is suitable for the technical field of safety helmets, and provides a safety protection assembly which comprises a safety helmet and earmuffs inserted in the safety helmet, the safety helmet comprises a helmet shell, a top band, a helmet hoop and a chin band, and each earmuff comprises an earmuff cup body, a connecting arm and a connecting base; the inner side of the helmet shell is provided with a plurality of fixing grooves which are provided with arc-shaped inner surfaces and are used for connecting and fixing the top belt, the adjacent fixing grooves are correspondingly enclosed outside the two sides of the helmet shell to form mounting slots for mounting the earmuffs, the inner side walls of the mounting slots are provided with extension parts extending downwards, and the extension parts are provided with locking notches; the connecting seat comprises a main body base, a mounting insertion sheet which is connected with the lower end of the main body base and is used for being inserted into the mounting slot, and a pivot structure which is arranged on the main body base and is pivotally connected with the connecting arm, and a locking part which is clamped with the locking notch in the extending part is arranged on the mounting insertion sheet. The safety helmet earmuff solves the problem that an existing earmuff is insufficient in installation stability and reliability on a safety helmet.

Description

Technical Field

[0001] The present invention relates to the technical field of safety helmets, and particularly to a safety protection component. Background Art

[0002] A safety helmet is an important personal protective equipment for protecting the heads of workers from impacts, punctures, etc. in various working environments such as industrial production, construction, and emergency rescue. In many high-noise working environments, such as mechanical manufacturing workshops, construction sites, airport ground crew, etc., workers also need to wear hearing protection devices to prevent permanent damage to hearing caused by noise. To facilitate use and integrate protection functions, directly installing hearing protection ear cups on the safety helmet has become a common solution. In this way, the ear cups can form an integral whole with the safety helmet, avoiding the inconvenience that may be brought by wearing the ear cups separately, and ensuring that hearing protection can be provided quickly and effectively when needed.

[0003] In the prior art, there are various ways to connect and fix the ear cups to the safety helmet shell. Among them, the snap connection is widely used because of its relatively simple structure, low cost, and the characteristics of being convenient for users to disassemble and install by themselves. A typical snap connection usually includes setting one or more protruding snap structures on the connecting arm or bracket of the ear cup, and at the same time opening a slot or groove on the side or edge of the safety helmet shell corresponding to the position for accommodating and locking the snap. During installation, align the snap of the ear cup with the slot on the shell and press hard, so that the snap elastically deforms and crosses the edge of the slot, and then resumes its shape and snaps into the slot, thereby realizing the temporary fixation of the ear cup and the shell.

[0004] However, through research and practice, it is found that the existing installation method of the safety helmet ear cup based on the snap connection has several inherent defects:

[0005] Insufficient connection stability and easy to shake: If the clearance control between the traditional slot and the insert piece is improper or due to wear during long-term use, it is easy to cause the ear cup to shake relative to the shell during wearing, which not only affects the wearing comfort and distracts the user's attention, but more seriously, it may damage the sealing surface between the ear cup and the head, reducing the actual noise reduction effect.

[0006] There is a risk of accidental detachment: When subjected to external force impacts, scratches, or the user performs strenuous movements, the locking force of the traditional connection structure is often insufficient, and the insert piece or snap may accidentally slide out or disengage from the slot, resulting in the instant failure of the ear cup, and even falling off, causing secondary risks or loss.

[0007] Poor installation and disassembly experience: The installation of some existing structures requires a large pressing force or is difficult to align; while the disassembly may be equally laborious, and even easily damage the connection components due to improper operation.

[0008] Inaccurate positioning: The lack of clear installation-in-place indication or limit structure may cause users to fail to install the earcups in the optimal protection position, or cause unnecessary stress on the components due to excessive insertion depth.

[0009] Insufficient durability: The buckle structure, especially the buckle made of plastic, is prone to wear, deformation or even breakage during repeated disassembly and assembly, resulting in connection failure. This limits the service life of the earcups and increases the replacement cost.

[0010] In view of the problems of poor stability, easy shaking, easy detachment, and insufficient durability existing in the connection method of snap-on safety helmet earcups in the above-mentioned prior art, it is urgent to develop a new or improved structure to improve the installation stability and reliability of the earcups on the safety helmet, while maintaining the convenience of disassembly and assembly as much as possible. Summary of the Invention

[0011] Based on this, the purpose of the present invention is to provide a safety protection component to fundamentally solve the problem of insufficient installation stability and reliability of existing earcups on safety helmets.

[0012] A safety protection component according to an embodiment of the present invention includes a safety helmet and earcups inserted on the safety helmet. The safety helmet includes a helmet shell, a top strap fixedly connected to the helmet shell, a cap band fixedly connected to the top strap, and a chin strap fixedly connected to the cap band. The earcups include an earcup body, a connecting arm connected to the earcup body, and a connecting seat connected to the connecting arm.

[0013] A plurality of fixing grooves with an arc-shaped inner surface are provided on the inner side of the helmet shell for connecting and fixing the top strap, and adjacent fixing grooves correspondingly enclose to form an installation slot for installing the earcups on both sides of the helmet shell. An extension part extending downward beyond the lower edge of the helmet shell main body is provided on the inner side wall of the installation slot facing the inner space of the helmet shell, and a locking notch is provided on the extension part.

[0014] The connecting seat includes a main body base, an installation insert piece connected to the lower end of the main body base and used for inserting into the installation slot, and a pivot structure provided on the main body base and pivotally connected to the connecting arm. A locking part is provided on the installation insert piece for engaging with the locking notch on the extension part.

[0015] In addition, a safety protection component according to the above embodiment of the present invention may further have the following additional technical features:

[0016] Further, a guiding and limiting portion extending upward and communicating with the corresponding area outside the cap shell of the adjacent fixing groove is provided on the outer side wall of the installation slot away from the inner space of the cap shell. An interruption notch for avoiding the locking portion is provided at a position corresponding to the locking portion in the extending direction of the guiding and limiting portion.

[0017] Further, the installation insert includes a middle insert located at the middle of the end away from the main body base, and two side inserts separated from both ends of the middle insert and having a spacing. The locking portion is provided at the end of the middle insert away from the main body base, and an opening is provided at a position of the middle insert close to the locking portion.

[0018] Further, a stop block is provided on the outer wall of the installation insert away from the inner space of the cap shell, which is arranged along the extending direction of the guiding and limiting portion and is used to abut against the guiding and limiting portion when the locking notch of the locking portion of the installation insert is engaged with the extending portion.

[0019] Further, chamfered surfaces are provided on the tip of the locking portion in both the insertion and extraction directions, and the length of the middle insert is less than the lengths of the two side inserts.

[0020] Further, the thickness of the installation insert gradually decreases from the end close to the main body base to the end away from the main body base.

[0021] Further, a limiting portion for limiting the top band is provided on the inner side wall of the fixing groove. The end of the top band is bifurcated and provided with inclined fixing portions matching the respective fixing grooves and fixing holes for connecting and fixing the cap hoop, and a limiting groove engaging with the limiting portion is provided on the fixing portion.

[0022] Further, first fixing members and second fixing members integrally injection-molded and symmetrically distributed along the front and rear of the central axis are provided on the outer surface of the cap shell;

[0023] The first fixing member includes a groove-shaped structure composed of a first card slot and a second card slot which are arranged in parallel and respectively used for fixing different lighting fixtures;

[0024] The second fixing member includes two buckles for fixing cables symmetrically distributed along the left and right of the central axis, and symmetric sliding grooves are respectively provided on the adjacent side walls of the two buckles. A clamping structure for clamping the handle of the warning lamp is jointly formed by the sliding grooves arranged between the two buckles.

[0025] Further, the safety protection component further includes any one or more of a lighting headlamp with a rotating structure, a cordless lamp with a cap hook, and a warning lamp with a handle;

[0026] The first card slot of the safety helmet is used to fix the rotating structure of the lighting headlamp, the second card slot of the safety helmet is used to fix the cap hook of the cordless lamp, and the sliding groove of the safety helmet is used to engage the handle of the warning lamp.

[0027] Furthermore, four first fixing grooves symmetrically distributed circumferentially and four second fixing grooves symmetrically distributed in the middle of the left and right sides are provided inside the cap shell. Among them, two adjacent second fixing grooves correspondingly enclose the installation slot outside the cap shell.

[0028] In the safety protection component provided by the embodiment of the present invention, by providing a downward extension part on the inner side wall of the installation slot of the safety helmet, the contact and guiding length with the installation insert of the earmuff is increased, providing a longer vertical contact surface; cooperating with the guiding and limiting part on the outer side wall to provide precise guidance, and the precise fit between the installation insert and the installation slot, stronger lateral restraint and more precise guidance are provided for the inserted installation insert. Therefore, after the earmuff is installed, the connection is tight, the fitting gap is reduced, the shaking during use is greatly suppressed, and the wearing comfort and acoustic sealing performance are improved; through the locking notch deep in the extension part of the inner side wall and the locking part on the installation insert of the earmuff to form a firm snap lock, effectively preventing the earmuff from accidentally slipping upward under various working conditions (including impact and vibration); at the same time, the stop block on the installation insert cooperates with the guiding and limiting part outside the installation slot to form a downward physical limit, constituting a double vertical lock (upward locking to prevent detachment, downward stop to prevent over-insertion), greatly improving the anti-accidental detachment ability, further enhancing the connection reliability. At the same time, the stop block provides a clear physical stop point, and the user can clearly perceive that the earmuff has been fully inserted and installed in place, avoiding the situation of over-insertion or non-insertion in place, ensuring that the best fixing and protection state can be achieved for each installation; and the double-sided chamfer design at the tip of the locking part significantly reduces the friction force and the required operating force during insertion and extraction; and through the segmented installation insert structure and the middle opening design, the elastic deformation ability of the locking part is enhanced, making the locking and unlocking actions lighter and smoother; at the same time, the segmented installation insert and the middle opening design help to disperse stress, and the easier elastic deformation reduces material fatigue, combined with the smoother operation to reduce the possibility of violent plugging and unplugging. These factors work together to extend the service life of the structure. It solves the problem of insufficient installation stability and reliability of the existing earmuffs on the safety helmet. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the safety protection component in the first embodiment of the present invention from the first perspective;

[0030] Figure 2 It is an exploded view of the safety protection component in the first embodiment of the present invention from the second perspective;

[0031] Figure 3Explosion diagram of the safety protection component in the first embodiment of the present invention from the third perspective;

[0032] Figure 4 Explosion diagram of the safety protection component in the first embodiment of the present invention from the fourth perspective;

[0033] Figure 5 is Figure 2 Enlarged view of the part within circle II in

[0034] Figure 6 is Figure 3 Enlarged view of the part within circle III in

[0035] Figure 7 is Figure 4 Enlarged view of the part within circle IV in

[0036] Figure 8 Structural schematic diagram of the safety protection component in the second embodiment of the present invention from the fifth perspective;

[0037] Figure 9 Explosion diagram of the safety protection component in the second embodiment of the present invention from the sixth perspective;

[0038] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0039] For ease of understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention is thorough and comprehensive.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0042] Embodiment 1

[0043] Please refer to Figures 1-7 , which shows the safety protection component in the first embodiment of the present invention. For the convenience of description, only the parts related to the embodiments of the present invention are shown. The safety protection component provided by the embodiments of the present invention includes a safety helmet 10 and ear cups 20 inserted on the safety helmet 10. The safety helmet 10 includes a helmet shell 11, a top strap 12 fixedly connected to the helmet shell 11, a cap band 13 fixedly connected to the top strap 12, and a chin strap 14 fixedly connected to the cap band 13. The ear cups 20 include ear cup bodies 21, connecting arms 22 connected to the ear cup bodies 21, and connecting seats 23 connected to the connecting arms 22;

[0044] On the inner side of the helmet shell 11, there are a plurality of fixing grooves 111 with arc-shaped inner surfaces for fixedly connecting the top strap 12. Adjacent fixing grooves 111 correspondingly enclose an installation slot 112 for installing the ear cups 20 on both sides outside the helmet shell 11. On the inner side wall of the installation slot 112 facing the inner space of the helmet shell 11, there is an extension part 113 extending downward beyond the lower edge of the main body of the helmet shell 11, and a locking notch 1131 is provided on the extension part 113;

[0045] The connecting seat 23 includes a main body base 231, an installation insert piece 232 connected to the lower end of the main body base 231 and used for inserting into the installation slot 112, and a pivot structure 233 provided on the main body base 231 and pivotally connected to the connecting arm 22. A locking part 2323 is provided on the installation insert piece 232 and is engaged with the locking notch 1131 on the extension part 113.

[0046] Among them, in an embodiment of the present invention, the safety protection component mainly includes a safety helmet 10 and ear cups 20 detachably inserted on the safety helmet 10. The main body of the safety helmet 10 includes a core helmet shell 11 made of high-strength, high-toughness, and impact-resistant engineering plastics such as ABS (acrylonitrile-butadiene-styrene copolymer), PC (polycarbonate), HDPE (high-density polyethylene), etc., to provide basic impact protection. The outer shape of the helmet shell 11 is hemispherical or similar, and it is hollow inside to accommodate the head of the wearer. A suspension system for wearing and buffering is arranged inside the helmet shell 11, and the suspension system includes a top strap 12 fixedly connected to the inner wall of the helmet shell 11, a cap band 13 fixedly connected to the top strap 12, and a chin strap 14 fixedly connected to the cap band 13, which work together to stably wear the helmet shell 11 on the user's head and buffer external impact forces. Further, the safety helmet 10 may also include a sweat-absorbing band 15 fixedly connected to the cap band 13, which is used to effectively absorb the sweat on the wearer's head, prevent the sweat from flowing into the eyes and affecting the line of sight or causing discomfort, ensure clear working line of sight and comfortable wearing, and improve the comfort and hygiene of wearing.

[0047] Among them, in an embodiment of the present invention, in order to reliably connect the top band 12, a plurality of fixing grooves 111 with an arc-shaped inner surface are provided on the inner side of the cap shell 11. The arc-shaped inner surface design can better fit the fixing portion 121 of the top band 12, increase the contact area, and improve the connection stability. Further, the inner wall of the fixing groove 111 inclines towards the inside of the cap shell 11, that is, the thickness of the bottom inner wall (the side close to the inside of the cap shell 11) of the fixing groove 111 is greater than the thickness of the top inner wall (the side close to the outer surface of the cap shell 11). This inclined design is on the one hand to match the overall shape of the safety helmet 10 that is narrower at the top and wider at the bottom. At this time, the bottom inner wall of the fixing groove 111 is thicker, so as to provide a larger contact area and higher strength, and enhance the firmness of the connection. On the other hand, it also facilitates the installation and demolding of the fixing portion 121. Among them, the inclined inner wall provides a demolding slope for the mold during the injection molding process, making it easier to remove the cap shell 11 from the mold.

[0048] Among them, in this embodiment, in order to achieve stable multi-point support, preferably four first fixing grooves 1111 symmetrically distributed circumferentially (for example, distributed in the front, back, left, and right four directions) and four second fixing grooves 1112 symmetrically distributed in the middle along the left and right sides (for example, one in the front and one in the back on each side, forming support points on the side) are provided on the inner side of the cap shell 11. A total of eight fixing grooves 111 are used to connect and fix each branch of the top band 12. Therefore, by setting a plurality of fixing grooves 111, the connection strength between the cap shell 11 and the top band 12 can be effectively increased. At the same time, the design of the fixing groove 111 with an arc-shaped inner surface and the matching fixing portion 121 eliminates the sharp corner stress concentration, improves the strength and toughness of the connection part; at the same time, the arc-shaped inner surface optimizes the force, avoids sharp corners, improves the fluidity of the plastic melt in the mold, reduces the stress concentration, reduces the risks of defects such as cracking and material shortage, and improves the qualified rate and service life of the product. Further, two adjacent second fixing grooves 1112 (that is, the fixing grooves adjacent to each other in the front and back on the left and right sides) correspondingly enclose (that is, separated by the wall thickness of the cap shell 11) on the outer sides of the two sides of the cap shell 11 to form an installation slot 112 for installing the earphone 20. Therefore, the inside of the fixing groove 111 is used to fix the top band 12, and its external form is used to construct the installation interface of the earphone 20. At this time, the installation position of the earphone 20 and some fixing points of the top band 12 are structurally related and integrated. The fixing groove 111 on the cap shell 11 is used to fix the top band 12 and also defines the installation slot 112 of the earphone 20. Therefore, this design not only simplifies the mold structure, reduces the independent openings on the cap shell 11, realizes the structural integration, but also improves the overall strength of the installation area due to the structural sharing.

[0049] Among them, the installation slot 112 has a clear boundary, which is at least partially defined by an inner wall facing the inner space of the cap shell 11 and an outer wall away from the inner space. To ensure the stability and reliability of the installation of the earcup 20, the structure of the installation slot 112 is carefully designed. Specifically, on the inner wall of the installation slot 112 facing the inner space of the cap shell 11, there is an extension 113 that extends downward and extends beyond the lower edge of the main body of the cap shell 11. The design of this extension 113 increases the insertion depth and contact area of the installation insert 232, provides a longer contact and guiding surface for the connecting seat 23 of the earcup 20. When the connecting seat 23 of the earcup 20 is inserted, this extension 113 can more effectively limit the front-back shaking and torsion of the connecting seat 23, significantly enhancing the connection stability and effectively preventing the earcup 20 from shaking back and forth during use. At the same time, the extension 113 extending downward on the inner wall also increases to a certain extent the structural strength and rigidity of the cap shell in this area when resisting lateral impact or pressure. More importantly, a locking notch 1131 is provided on the extension 113, and its position is relatively low, ensuring that the locking action occurs deep in the installation slot 112, further improving the connection firmness and preventing accidental slippage.

[0050] Further, in an embodiment of the present invention, a guiding and limiting portion 114 is provided on the outer side wall of the mounting slot 112 away from the inner space of the cap housing 11. The guiding and limiting portion 114 extends upward and communicates with the corresponding area of the adjacent fixing slot 111 outside the cap housing 11. The guiding and limiting portion 114 is provided with an interruption notch 1141 for avoiding the locking portion 2323 at the position corresponding to the locking portion 2323 in its extending direction. Specifically, the guiding and limiting portion 114 communicates with the corresponding area of the adjacent fixing slot 111 outside the cap housing 11 to form a convex guiding structure along the outside of the mounting slot 112. At this time, when the user inserts the connecting seat 23 of the earcup 20, the guiding and limiting portion 114 can provide clear vertical direction guidance to ensure that the mounting insert 232 enters the mounting slot 112 in the correct posture, simplifies the installation operation, and improves the installation accuracy. When the user installs the earcup 20, the mounting insert 232 will slide along the guiding and limiting portion 114 to ensure that the mounting insert 232 enters the deep part of the mounting slot 112 at the correct vertical height and horizontal posture, so as to be more easily aligned with the lower locking notch 1131, improving the convenience and accuracy of installation and preventing the insert from being skewed or stuck. At the same time, the inserted mounting insert 232 will partially rest on the guiding and limiting portion 114, providing an additional vertical support point for the earcup 20, which helps to share part of the weight or impact force, so that the guiding and limiting portion 114 also plays a certain lateral limiting role after the mounting insert 232 is installed in place. Further, in order to cooperate with the movement of the locking portion 2323 of the mounting insert 232, the guiding and limiting portion 114 is provided with an interruption notch 1141 at the position corresponding to the position where the locking portion 2323 needs to pass through or deform in its extending direction. The interruption notch 1141 provides necessary avoidance space for the locking portion 2323 on the connecting seat 23 of the earcup 20 during the insertion and extraction processes, ensuring that the locking portion 2323 can elastically deform smoothly to complete the locking and unlocking actions and avoid interference. Therefore, the design of the guiding and limiting portion 114 and the interruption notch 1141 ensures smooth guidance when the mounting insert 232 is inserted and reserves space for the movement of the locking portion 2323.

[0051] Among them, in an embodiment of the present invention, a limiting portion 115 for limiting the top band 12 is provided on the inner side wall of the fixing groove 111. The end portion of the top band 12 is bifurcated and provided with an inclined fixing portion 121 matching each fixing groove 111 and a fixing hole 122 for connecting the fixing cap 13. And a limiting groove 1211 engaged with the limiting portion 115 is provided on the fixing portion 121. Specifically, the top band 12 is made of a high-strength, wear-resistant and breathable webbing or plastic material, such as nylon webbing, polypropylene webbing, TPU (thermoplastic polyurethane), etc. In order to improve the reliability of the fixation of the top band 12 to the cap shell 11, a limiting portion 115 (such as a protrusion) for limiting the top band 12 is provided on the inner side wall of the fixing groove 111. Correspondingly, the end portion of the top band 12 (i.e., the portion inserted into the fixing groove 111) is bifurcated to form an inclined fixing portion 121 matching each fixing groove 111. The inclined setting means that the fixing portion 121 has a certain angle relative to the main body of the top band 12 to adapt to the head shape and the curved surface of the cap shell 11, facilitating insertion into the fixing groove 111. At this time, in cooperation with the inclined setting of the fixing portion 121 of the top band 12 and the main body of the top band 12, when the fixing portion 121 is disassembled, the fixing portion 121 moves towards the top end of the fixing groove 111, and the inner wall at the bottom end of the fixing groove 111 is thicker to form an inclination to achieve the cooperation with the fixing portion 121 of the top band 12. Among them, a limiting groove 1211 engaged with the limiting portion 115 in the fixing groove 111 is provided on these fixing portions 121. At this time, the limiting portion 115 in the fixing groove 111 cooperates with the limiting groove 1211 of the fixing portion 121 to achieve a firm lock of the top band 12 in the fixing groove 111, ensuring that the top band 12 can be firmly locked once it is installed in place, achieving double locking, preventing loosening, rotation or falling off during use, ensuring a firm and reliable connection between the top band 12 and the cap shell 11, and at the same time facilitating the disassembly, replacement and cleaning of the top band 12. In addition, another part bifurcated from the end portion of the fixing portion 121 is provided with a fixing hole 122 for connecting the fixing cap 13.

[0052] Further, in order to enhance the functionality of the safety helmet 10, especially the lighting function, without damaging the main body of the helmet shell 11, a structure for fixing lamps or other accessories can be integrally injection-molded on the outer surface of the helmet shell 11. In this embodiment, on the outer surface of the helmet shell 11, there are integrally injection-molded first fixing member 116 and second fixing member 117 that are symmetrically distributed before and after along the central axis; the first fixing member 116 includes a groove-shaped structure composed of two first card slots 1161 and second card slots 1162 that are arranged in parallel and are respectively used for fixing different lighting lamps; the second fixing member 117 includes two buckles for fixing cables that are symmetrically distributed left and right along the central axis, and symmetric chutes 1171 are respectively provided on the side walls of the two adjacent buckles, and the chutes 1171 provided between the two buckles together form a clamping structure for clamping the handle of the warning lamp. At this time, by providing standardized and drill-free accessory installation interfaces (the first fixing member 116 and the second fixing member 117), the integrity and strength of the helmet shell 11 are maintained, ensuring that the safety helmet 10 can effectively protect the head when impacted, greatly expanding the applicable scenarios and functionality of the safety helmet 10, and improving the operation convenience and safety. The dedicated card slots / clamping structures designed for different lamps ensure the stability and compatibility of the installation. At the same time, the symmetrical layout helps to maintain the balance of wearing, and the buckle design of the second fixing member 117 takes into account the actual need for cable fixing during use.

[0053] Specifically, in an embodiment of the present invention, the first fixing member 116 is connected to the outer surface of the helmet shell 11 through an integral injection molding process and is located at the front part of the helmet shell 11 (along the central axis of the safety helmet 10). Specifically, referring to Figure 6 As shown, the first fixing member 116 is a groove-shaped structure, including two first card slots 1161 and second card slots 1162 that are arranged in parallel. On the outer surface of the helmet shell 11, the first card slot 1161 and the second card slot 1162 are sequentially arranged outward, and the opening 2324 of the first card slot 1161 is larger than the opening 2324 of the second card slot 1162. Specifically, the first card slot 1161 is located inside and has a larger opening 2324, which is used for fixing the rotating structure of the headlamp. Among them, referring to Figure 9As shown, the rotating structure is usually a plastic part with a pivot. The lighting headlamp can rotate around it to adjust the irradiation angle, and the rotating structure is provided with an elastic buckle, which can elastically deform during the insertion and removal of the elastic buckle into and out of the first card slot 1161. Further, a receiving notch 1163 is provided at the bottom of the first card slot 1161 for receiving the elastic buckle on the rotating structure of the lighting headlamp, so as to increase the fixing stability. At this time, during the process of inserting the rotating structure of the lighting headlamp into the first card slot 1161, the elastic buckle first elastically deforms. After the rotating structure is completely inserted, its elastic buckle is received in the receiving notch 1163 and restores its deformation, so as to realize the snap-fitting fixation of the rotating structure of the lighting headlamp and the first card slot 1161. The second card slot 1162 is located inside, and the opening 2324 is smaller, which is used to fix the cap hook of the cordless lamp. The cap hook of the cordless lamp is usually a metal or plastic hook, which can be inserted into the second card slot 1162. At this time, it should be noted that the opening 2324 of the first card slot 1161 is set larger than the opening 2324 of the second card slot 1162, mainly because the larger opening 2324 of the first card slot 1161 can provide enough space for the deformation of the elastic buckle during the insertion and removal process. During the use of the cordless lamp, it may be subjected to large vibrations or impacts. At this time, the smaller opening 2324 of the second card slot 1162 can form a "jamming" effect, so as to more tightly restrain the cap hook of the cordless lamp and prevent it from shaking or falling off in the second card slot 1162. At the same time, the opening 2324 of the first card slot 1161 is set larger than the opening 2324 of the second card slot 1162, which makes it convenient to set the receiving notch 1163 for receiving the elastic buckle and convenient for effectively operating and pressing the elastic buckle to remove the lighting headlamp.

[0054] Further, the first fixing member 116 is also provided with a reinforcing structure 1164 respectively connected to the outer surface of the cap shell 11 and the groove structure. The reinforcing structure 1164 is located between the outer surface of the cap shell 11 and the side wall of the groove structure in the first fixing member 116. The reinforcing structure 1164 is usually provided with reinforcing ribs or thickening treatment, so as to improve the strength and anti-deformation ability of the first fixing member 116. The reinforcing structure 1164 is a reinforcing rib connecting the outer surface of the cap shell 11 and the first card slot 1161.

[0055] Among them, in an embodiment of the present invention, the second fixing member 117 is integrally injection-molded with the cap shell 11 and is located at the rear of the outer surface of the cap shell 11. There are two buckles symmetrically distributed along the central axis. Each buckle has an opening 2324, which is generally in a "C" shape and is used to snap into a cable rope or other linear accessories. The two buckles are inclined upward perpendicular to the outer surface of the cap shell 11. At the same time, the rear part of the safety helmet 10 is usually the position of the wearer's back of the head. At this time, the buckles are inclined upward, which can better conform to the curve of the head, make the fixed cable rope or other accessories fit the head more closely, and reduce the discomfort and shaking during wearing. And when the cable rope is subjected to a tensile force, the inclined buckles can decompose the tensile force into upward and backward component forces. The upward component force helps to fix the safety helmet 10 more tightly on the head and prevent the safety helmet 10 from tilting backward or falling off due to the tensile force. At the same time, the inclined design makes the opening 2324 of the buckle face obliquely upward, which is more convenient for the wearer to snap the cable rope in or out, especially when wearing gloves or in case of inconvenient operation. On one side of each buckle close to the central axis, there is a chute 1171, and the chute 1171 is also inclined upward. The chutes 1171 provided between the two buckles together form a complete clamping structure for clamping the handle of the warning lamp, which is convenient for the insertion and removal of the handle of the warning lamp. At the same time, the upwardly inclined chute 1171 can guide the warning lamp to irradiate upward, thereby expanding the warning range and improving safety. Further, the top opening 2324 of the chute 1171 is larger than the bottom opening 2324 of the chute 1171, forming an inverted trapezoidal structure, which is convenient for the insertion of the handle of the warning lamp and prevents it from accidentally sliding out. Further, the chute 1171 and the handle of the warning lamp are respectively provided with a first limiting structure (not shown in the figure) and a second limiting structure that cooperate with each other to play a role in limiting and preventing the handle of the warning lamp from falling off. And by setting the inverted trapezoidal structure, the handle of the warning lamp can be gradually clamped and finally locked. The side wall of the chute 1171 is provided with a second limiting groove or a second limiting protrusion or a second magnetic attracting member corresponding to the first limiting protrusion or the first limiting groove or the first magnetic attracting member provided on the handle of the warning lamp. Specifically, the handle of the warning lamp has a first limiting protrusion, and a second limiting groove (not shown in the figure) is provided on the inner wall of the chute 1171. After the handle of the warning lamp is snapped into the second fixing member 117 through the chute 1171, the first limiting protrusion and the second limiting groove cooperate with each other to play a role in limiting and preventing falling off. Of course, the first limiting structure and the second limiting structure can also be a second limiting protrusion and a first limiting groove that cooperate with each other, or a first magnetic attracting member and a second magnetic attracting member that attract each other, which are not specifically limited herein.

[0056] Further, in an embodiment of the present invention, referring to Figure 4As shown in the figure, the cap hoop 13 includes an annular band 131, an adjustment band 132 and an adjustment buckle 133 respectively connected to both ends of the annular band 131; ventilation holes 1311, anti-collision columns 1312, fixing columns 1313 for connecting and fixing the top band 12 and the chin strap 14, and fixing protrusions 1314 for connecting and fixing the sweat-absorbing band 15 are provided on the annular band 131 along its length direction. The ventilation holes 1311 are used to increase the air permeability of the annular band 131 for ventilation and heat dissipation and to disperse stress. The anti-collision columns 1312 are used to disperse the impact force, avoid direct contact between the cap shell 11 and the wearer's head, reduce the impact of the deformation of the cap shell 11 under stress on the top of the wearer's head, and prevent head injuries. The fixing columns 1313 are used to cooperate with the fixing holes 122 on the top band 12 and the fixing holes on the chin strap 14 of the safety helmet 10 for fixation. Specifically, in this embodiment, the fixing columns 1313 are T-shaped columns, and the corresponding fixing holes on the top band 12 and the chin strap 14 are T-shaped holes. The fixing protrusions 1314 are used to pass through the fixing through holes of the sweat-absorbing band 15 to fix the sweat-absorbing band 15.

[0057] Among them, in an embodiment of the present invention, the chin strap 14 is made of a soft, comfortable and durable webbing material, such as nylon webbing, polyester webbing, etc. The chin strap 14 includes a fixing band and a buckling band. Fixing holes (T-shaped holes) are provided at both ends of the fixing band for connecting with the fixing columns 1313 (T-shaped columns) on the cap hoop 13. The buckling band includes a male buckle and a female buckle for adjusting the length and tightness of the chin strap 14. The male buckle and the female buckle can adopt various forms such as snap buttons, D-rings, ladder buckles, etc.

[0058] Among them, in an embodiment of the present invention, the earcup 20 mainly includes an earcup body 21, a connecting arm 22 connecting the earcup body 21 and the connecting seat 23, and a connecting seat 23 for fixing the entire earcup 20 to the safety helmet 10. The earcup body 21 is used to wrap the wearer's ears, filled with sound-absorbing materials inside (not shown in the figure), and provided with a sealing ring on the outer edge (not shown in the figure) for isolating noise and protecting hearing. The connecting arm 22 is usually an adjustable wire (wrapped with plastic or heat shrink tube) or a plastic arm, allowing the earcup body 21 to move between the use position (covering the ears) and the retracted position (flipped up). It should be noted that the connecting arm 22 can slide vertically (relative to the connecting seat) or rotate around the connection point to adjust the up and down position and the front and back angle of the earcup. The connecting seat 23 is a key interface component for connecting the earcup 20 and the safety helmet 10. It includes a main body base 231 and a pivot structure 233 provided on the main body base 231 and pivotally connected to the connecting arm 22, allowing the connecting arm 22 to drive the earcup body 21 to rotate, so that the earcup body 21 can be rotated and retracted or adjusted to the working position. The lower end of the connecting seat 23 is connected with an installation insert 232 for inserting into the installation slot 112 of the safety helmet 10. The structure of the installation insert 232 is precisely matched with the installation slot 112 and its internal features. Specifically, a locking portion 2323 is provided on the installation insert 232, and the shape and position of the locking portion 2323 are designed to be able to precisely engage with the locking notch 1131 on the inner wall extension 113 of the installation slot 112. When the installation insert 232 is completely inserted into the installation slot 112, the locking portion 2323 uses its own elastic deformation to cross the edge of the locking notch 1131 and snap or be inserted into the locking notch 1131 to form a reliable mechanical lock. Therefore, the inner extension 113 of the installation slot 112 and its locking notch 1131 cooperate with the locking portion 2323 on the installation insert 232 of the connecting seat 23 to provide an earcup 20 installation method that does not require additional tools, is easy to operate, and has a very firm connection, avoiding the risk of accidental detachment of the earcup 20 during use.

[0059] Further, in the embodiments of the present invention, in order to optimize the elasticity and insertion / extraction performance of the mounting insert 232, the structure of the mounting insert 232 is further refined. The mounting insert 232 includes a middle insert 2321 located at the middle of the end far from the main body base 231, and two side-end inserts 2322 separated from both ends of the middle insert 2321 with a spacing therebetween. A locking portion 2323 is provided at the end of the middle insert 2321 far from the main body base 231, and an opening 2324 is provided at a position of the middle insert 2321 close to the locking portion 2323. Specifically, the mounting insert 232 is designed as a segmented structure, which is divided into three perpendicular segments / finger-like parts, specifically including the middle insert 2321 in the middle and two side-end inserts 2322 separated from both ends of the middle insert 2321 (with a spacing therebetween). The locking portion 2323 is provided at the end (i.e., the insertion end) of the middle insert 2321. The width of the middle insert 2321 is greater than the widths of the left and right side-end inserts 2322, and the middle insert 2321 and the two side-end inserts 2322 are designed to branch from the middle of the mounting insert 232. At this time, through the segmented design, these three parts (especially the middle insert 2321) have a certain independent elastic deformation ability. During installation, when the locking portion 2323 contacts the inner wall of the mounting slot 112, the middle insert 2321 can be relatively easily bent inward, allowing the locking portion 2323 to smoothly slide past and finally snap into the locking notch 1131. During disassembly, it is necessary to press the locking portion 2323 or the relevant part of the mounting insert 232 to disengage it from the locking notch 1131, and the separated structure makes the force required to operate the middle insert 2321 smaller and easier to achieve. If it is a monolithic and very rigid mounting insert 232, it would be much more difficult to achieve this elastic snapping in and release, or a greater operating force would be required, and it may even cause damage to the components. Moreover, when subjected to impact or repeated insertion / extraction, the stress can be better distributed among the various segments and their joints, which may help improve the durability of the structure and avoid stress concentration in a single area resulting in fracture. Therefore, this segmented design significantly increases the flexibility of the mounting insert 232 (especially the middle insert 2321), making it more likely to undergo elastic deformation during the locking and unlocking processes, reducing the operating force, improving the ease of use, and may help disperse the stress and improve the durability.

[0060] Meanwhile, the opening 2324 further enhances the elastic deformation ability of the middle insertion piece 2321 in the area where the locking part 2323 is carried. The opening 2324 makes the lower half where the locking part 2323 is located more like a cantilever beam, greatly reducing the stiffness of this part, making it easier to bend and deform when subjected to lateral forces (during installation and disassembly), so that the locking part 2323 is more easily compressed when inserted, and can reliably pop out and snap into the locking notch 1131 after being in place, and is more easily pressed and retracted when disassembly is required. Further, for the convenience of insertion and extraction, chamfered slopes are provided at the tip of the locking part 2323 in both the insertion and extraction directions. The chamfer in the insertion direction helps to guide the locking part 2323 to slide over the surface of the extension part 113 and be compressed, while the chamfer in the extraction direction can make it easier to disengage from the locking notch 1131 when an extraction force is applied and the locking part 2323 is pressed, making the forward insertion smoother and the backward extraction (unlocking) easier, significantly improving the operation experience. In addition, the length of the middle insertion piece 2321 is less than the lengths of the two side insertion pieces 2322. This enables the longer side insertion pieces 2322 to enter the installation slot 112 first during insertion to play a guiding and stabilizing role, and then the shorter middle insertion piece 2321 with the locking part 2323 is inserted to complete the locking. This design makes the middle locking part 2323 more flexible and easier to deform, while ensuring that the two side insertion pieces 2322 provide sufficient support and positioning, and allowing the two side insertion pieces 2322 to contact or bear the main pressure first to protect the locking part 2323, contributing to a step-by-step stable insertion. In addition, the thickness of the installation insertion piece 232 gradually decreases from the end close to the main body base 231 to the end away from the main body base 231 (i.e., it is wedge-shaped). This tapered design can further optimize the insertion process, facilitating the smooth wedging of the installation insertion piece 232 into the installation slot 112 to reduce friction, and forming a tighter fit after complete insertion. Moreover, it can be designed as a reinforcing rib to effectively strengthen the structural strength near the main body base 231, and save materials at the end away from the main body base 231 while ensuring strength; at the same time, it can also cooperate with the mold design to facilitate injection molding and demolding.

[0061] Among them, in an embodiment of the present invention, in order to further improve the smoothness and stability of installation, a stop block 2325 is provided on the outer wall of the installation insert 232 away from the inner space of the cap shell 11, which is arranged along the extending direction of the guiding and limiting portion 114 and is used to contact the guiding and limiting portion 114 when the locking portion 2323 of the installation insert 232 is engaged with the locking notch 1131 of the extending portion 113. When the locking portion 2323 of the installation insert 232 is engaged with the locking notch 1131 (i.e., the installation is in place), the stop block 2325 will physically contact the guiding and limiting portion 114 on the outer side wall of the installation slot 112 of the safety helmet 10, providing a clear downward stop to prevent over-insertion, and forming a double vertical limit with the upward locking of the locking portion 2323 to ensure that the earphone 20 is accurately and firmly positioned at the preset working height. Therefore, the setting of the stop block 2325 provides a clear physical feedback and limit for the installation in place, preventing over-deep or improper installation, and further enhancing the stability of the connection and the convenience of operation.

[0062] In summary, the safety protection component in the above embodiment of the present invention increases the contact and guiding length with the installation insert of the earphone by providing a downward extending portion on the inner side wall of the installation slot of the safety helmet, providing a longer vertical contact surface; cooperating with the guiding and limiting portion on the outer side wall to provide precise guidance, and the precise fit between the installation insert and the installation slot, providing stronger lateral restraint and more precise guidance for the inserted installation insert. Therefore, after the earphone is installed, the connection is tight, reducing the fit gap, greatly suppressing the shaking during use, and improving the wearing comfort and acoustic sealing performance; forming a firm snap lock between the locking notch deep in the extending portion of the inner side wall and the locking portion on the installation insert of the earphone, effectively preventing the earphone from accidentally slipping upward under various working conditions (including impact and vibration); at the same time, the stop block on the installation insert cooperates with the guiding and limiting portion outside the installation slot to form a downward physical limit, constituting a double vertical lock (upward locking to prevent detachment, downward stop to prevent over-insertion), greatly improving the ability to resist accidental detachment, further enhancing the reliability of the connection, and at the same time the stop block provides a clear physical stop point, allowing users to clearly perceive that the earphone has been fully inserted and installed in place, avoiding the situation of over-deep or improper insertion, and ensuring that the best fixation and protection state can be achieved for each installation; the double-sided chamfer design at the tip of the locking portion significantly reduces the friction force and the required operating force during insertion and extraction; and through the segmented installation insert structure and the middle opening design, the elastic deformation ability of the locking portion is enhanced, making the locking and unlocking actions lighter and smoother; at the same time, the segmented installation insert and the middle opening design help to disperse stress, and the easier elastic deformation reduces material fatigue, combined with the smoother operation to reduce the possibility of violent plugging and unplugging. These factors work together to extend the service life of the structure. Solved the problem of insufficient installation stability and reliability of the existing earphone on the safety helmet. Embodiment Two

[0063] Please refer to Figures 8-9 , which shows the safety protection component in the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiments of the present invention are shown. The structure of the safety protection component in the embodiments of the present invention is generally the same as that of the safety protection component in the above-mentioned first embodiment. The difference is that the safety protection component provided in the embodiments of the present invention further includes any one or more of the lighting headlamp 30 having a rotating structure 31, the cordless lamp 40 having a cap hook (not shown in the figure), and the warning lamp 50 having a handle 51; wherein the first card slot of the safety helmet is used to fix the rotating structure of the lighting headlamp, the second card slot of the safety helmet is used to fix the cap hook of the cordless lamp, and the sliding slot of the safety helmet is used to engage the handle of the warning lamp.

[0064] Since the above-mentioned first fixing member and second fixing member are provided on the safety helmet, the safety protection component can be conveniently selected and installed with one or more lamps. For example, the base of the rotating structure 31 of the lighting headlamp 30 is inserted into the first card slot; the cap hook of the cordless lamp 40 is snapped into the second card slot; the handle 51 of the warning lamp 50 is slid into and engaged in the engaging structure formed by the sliding slot. Therefore, the integrally formed first fixing member and second fixing member on the helmet shell provide a ready-to-use lamp and accessory installation interface, without the need to purchase and install bulky fixtures or brackets additionally, greatly enhancing the versatility and convenience of the safety helmet. The specific content in this safety protection component can refer to the foregoing embodiments, and its implementation principle and the technical effects produced are the same as those of the foregoing embodiments. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in the foregoing embodiments.

[0065] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0066] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A safety protection component, characterized in that: The invention comprises a safety helmet and earmuffs inserted on the safety helmet, wherein the safety helmet comprises a helmet shell, a top strap connected and fixed to the helmet shell, a hat hoop connected and fixed to the top strap, and a chin strap connected and fixed to the hat hoop, and the earmuffs comprise an earmuff cup body, a connecting arm connected to the earmuff cup body, and a connecting seat connected to the connecting arm; The inner side of the cap shell is provided with a plurality of fixing grooves having an arc-shaped inner surface and used for connecting and fixing the top band, and the adjacent fixing grooves are correspondingly enclosed on the outer sides of the cap shell to form a mounting slot for mounting the earmuffs, and the mounting slot is provided with an extension portion extending downward beyond the lower edge of the cap shell body on the inner side wall facing the inner space of the cap shell, and the extension portion is provided with a locking notch; The connecting seat includes a main body base, a mounting plug connected to the lower end of the main body base and used to be inserted into the mounting slot, and a pivot structure arranged on the main body base and pivotally connected to the connecting arm, and the mounting plug is provided with a locking portion that engages with the locking notch on the extension portion.

2. The safety protection assembly according to claim 1, characterized in that: A guide limit portion extending upward and connecting the adjacent fixing slots in the corresponding area outside the cap shell is provided on the outer side wall of the installation slot away from the internal space of the cap shell, and an interruption notch is provided on the guide limit portion in its extension direction and at a position corresponding to the locking portion to avoid the locking portion.

3. The safety protection assembly according to claim 1, characterized in that: The installation plug includes a middle plug located in the middle of one end away from the main body base, and two side plugs separated from both ends of the middle plug and with a spacing therebetween. The locking portion is provided at the end of the middle plug away from the main body base, and an opening is provided at a position of the middle plug close to the locking portion.

4. The safety protection assembly according to claim 2, characterized in that: A stop block is provided on the outer wall of the installation plug away from the inner space of the cap shell, which is arranged along the extension direction of the guide limit portion and is used to abut against the guide limit portion when the locking portion of the installation plug is engaged with the locking notch of the extension portion.

5. The safety protection assembly according to claim 3, characterized in that: The tip of the locking portion is provided with an inclined chamfer in both the insertion and extraction directions, and the length of the middle insert is smaller than the length of the two side inserts.

6. The safety protection assembly according to claim 1, characterized in that: The thickness of the installation insert gradually decreases from one end close to the main body base to one end away from the main body base.

7. The safety protection assembly according to claim 1, characterized in that: The inner side wall of the fixing groove is provided with a limiting portion for limiting the top band, the end portion of the top band is forked with an inclined fixing portion matching each fixing groove and a fixing hole for connecting and fixing the cap hoop, and the fixing portion is provided with a limiting groove engaged with the limiting portion.

8. The safety protection assembly according to claim 1, characterized in that: The outer surface of the cap shell is provided with a first fixing member and a second fixing member integrally formed by injection molding and symmetrically distributed front and back along the central axis; The first fixing member comprises a slot-shaped structure consisting of two parallel first and second slots respectively used to fix different lighting fixtures; The second fixing member includes two buckles for fixing the cable, which are symmetrically distributed along the central axis, and symmetrical sliding grooves are respectively provided on the side walls adjacent to the two buckles. The sliding grooves arranged between the two buckles together form a clamping structure for clamping the handle of the warning lamp.

9. The safety protection assembly according to claim 8, characterized in that: The safety protection assembly also includes any one or more of a lighting headlamp with a rotating structure, a cordless lamp with a hat hook, and a warning lamp with a handle; The first card slot of the safety helmet is used to fix the rotating structure of the lighting headlamp, the second card slot of the safety helmet is used to fix the cap hook of the cordless lamp, and the sliding slot of the safety helmet is used to engage the handle of the warning lamp.

10. The safety protection assembly according to claim 1, characterized in that: The inner side of the cap shell is provided with four first fixing grooves symmetrically distributed in the circumferential direction and four second fixing grooves symmetrically distributed along the middle of the left and right sides, wherein two adjacent second fixing grooves are correspondingly enclosed on the outside of the cap shell to form the installation slot.

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