Safety helmet convenient to adjust

Abstract

The invention discloses a safety helmet convenient to adjust, the safety helmet convenient to adjust comprises a helmet shell and a protection mechanism, the protection mechanism comprises a first flexible protection part and a second flexible protection part, and the first flexible protection part is fixedly connected to the helmet shell and covers the neck of a worker; the second flexible protection part is detachably connected to the first flexible protection part. Through the arrangement of the first flexible protection part, the neck of a worker can be prevented from being directly irradiated by ultraviolet rays; and through connection of the second flexible protection part and the first flexible protection part, the neck of the worker can be subjected to heat preservation in winter, the neck of the worker is prevented from being directly irradiated by ultraviolet rays in summer, and the neck of the worker is also prevented from being directly blown by cold wind in winter.

Description

Technical Field

[0001] The present application relates to the technical field of survey equipment, and in particular to a safety helmet that is easy to adjust. Background Art

[0002] A safety helmet is a hat that protects the head from injuries caused by falling objects and other specific factors. Commonly used safety helmets are composed of a helmet shell, a lining, a chin strap, etc. The helmet shell is used to absorb and disperse the force; the lining is the general name for the parts in the helmet shell that directly contact the top of the wearer's head. When the safety helmet is worn, the lining surrounds the head of the person; the chin strap plays the role of fixing the safety helmet, and the chin strap is composed of a belt body and a locking mechanism.

[0003] Current safety helmets do not provide targeted protection for the neck during actual use, resulting in workers' necks being exposed to ultraviolet rays in summer and to cold wind in winter. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an easily adjustable safety helmet, which can prevent ultraviolet rays from irradiating the neck of a worker through a first flexible protective component, and prevent cold wind from blowing directly on the neck of a worker through the first flexible protective component combined with a second flexible protective component.

[0005] According to the adjustable safety helmet of the first aspect embodiment of the present application, the adjustable safety helmet includes a helmet shell and a protective mechanism, the protective mechanism includes a first flexible protective component and a second flexible protective component, the first flexible protective component is fixedly connected to the helmet shell and covers the neck of the worker; the second flexible protective component is detachably connected to the first flexible protective component.

[0006] The easily adjustable safety helmet according to the embodiment of the present application has at least the following beneficial effects: by providing the first flexible protective component, the worker's neck can be prevented from being directly exposed to ultraviolet rays; by connecting the second flexible protective component to the first flexible protective component, the worker's neck can be kept warm in winter, thereby preventing the worker's neck from being directly exposed to ultraviolet rays in summer and from being directly blown by cold wind in winter.

[0007] According to some embodiments of the present application, the first flexible protective component and the second flexible protective component are detachably connected via Velcro.

[0008] According to some embodiments of the present application, the adjustable safety helmet further includes an adjustment mechanism and a fixing strap assembly, wherein the fixing strap assembly is disposed on the helmet shell, and the adjustment mechanism is connected to the fixing strap assembly to adjust the length of the fixing strap assembly.

[0009] According to some embodiments of the present application, the adjustment mechanism includes a housing and a fixing component located in an inner cavity of the housing, the fixing belt component includes a first fixing belt and a second fixing belt, the adjustment mechanism is fixed to the first fixing belt, and the second fixing belt is locked to the adjustment mechanism through the fixing component.

[0010] According to some embodiments of the present application, the fixing component includes a driving component, a transmission component, a rotating component and a locking component. The driving component drives the transmission component to rotate by moving, and the transmission component drives the locking component to move closer to the second fixing belt or away from the second fixing belt through the rotating component.

[0011] According to some embodiments of the present application, the driving assembly includes a screw rod and a slide plate screwed to the screw rod, a rack is provided on the surface of the slide plate, and the transmission assembly includes a gear meshed with the rack; the slide plate can move along the screw rod and drive the gear to rotate through the rack.

[0012] According to some embodiments of the present application, the rotating assembly includes a first connecting rod and a second connecting rod hinged to each other, the first connecting rod is fixedly connected to the transmission assembly, and the second connecting rod is hinged to the locking assembly.

[0013] According to some embodiments of the present application, the locking assembly includes a lifting plate and a locking structure disposed on the lifting plate, and the locking structure is used to contact the second fixing belt to lock the second fixing belt.

[0014] According to some embodiments of the present application, the fixing assembly further includes a guiding assembly, wherein the guiding assembly includes a guiding component, and the guiding component connects the housing and the lifting plate to guide the lifting plate to move axially along the guiding component.

[0015] According to some embodiments of the present application, a limiting assembly is provided between the slide plate and the housing, and the limiting assembly is used to limit the movement of the slide plate along the screw rod.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the technical solution disclosed in the present application and constitute a part of the specification. Together with the embodiments disclosed in the present application, they are used to explain the technical solution disclosed in the present application and do not constitute a limitation on the technical solution disclosed in the present application.

[0018] Figure 1 is a schematic structural diagram of a safety helmet that is easy to adjust according to an embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of the structure of the adjustment mechanism and the fixing belt assembly in the easily adjustable safety helmet in the embodiment of the present application;

[0020] Figure 3 is a cross-sectional view of an adjustment mechanism in a safety helmet that is easy to adjust in an embodiment of the present application;

[0021] Figure 4 is a schematic diagram of the positions of the gears of the adjustment mechanism in the safety helmet for easy adjustment in an embodiment of the present application;

[0022] Figure 5 It is a schematic diagram of the structure of a lifting plate in a safety helmet that is easy to adjust in an embodiment of the present application.

[0023] Reference numerals:

[0024] Cap shell 101;

[0025] First flexible protective component 201; second flexible protective component 202; through hole 203; first Velcro 204; second Velcro 205;

[0026] Fixing belt assembly 300; first fixing belt 301; second fixing belt 302;

[0027] Adjustment mechanism 400; housing 401; insertion port 402; through port 403;

[0028] Screw rod 501 ; slide plate 502 ; rack 503 ; gear 504 ; turntable 505 ; rotating shaft 506 ; first connecting rod 507 ; second connecting rod 508 ; lifting plate 509 ; locking structure 510 ; guide component 511 ; limiting groove 512 ; limiting block 513 . DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0033] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] like Figure 1 As shown, an embodiment of the present application provides an adjustable safety helmet, which includes a helmet shell 101 and a protective mechanism. Among them, the helmet shell 101 is the main component of the safety helmet, and generally adopts an elliptical or hemispherical thin shell structure. This structure will produce a certain pressure deformation under impact pressure, because the rigidity of the material absorbs and disperses the force. At the same time, the surface of the helmet shell 101 is smooth and adopts a circular curve shape, which makes it easy for the impact object to slide away, thereby reducing the impact time. According to the required strength of the helmet shell, the helmet shell 101 can be made into a variety of forms such as a smooth top, a top rib, an edge, and no edge.

[0035] Furthermore, the protective mechanism can protect the worker's neck. In summer, the protective mechanism can prevent the worker's neck from being directly exposed to ultraviolet rays; in winter, the protective mechanism can prevent the worker's neck from being directly blown by cold wind. The protective mechanism can provide different types of protection for the worker's neck according to different external environments.

[0036] In some examples, the protective mechanism includes a first flexible protective component 201 and a second flexible protective component 202, and the first flexible protective component 201 is fixedly connected to the cap shell 101. It is understandable that the position of the first flexible protective component 201 can cover the neck of the staff, and when the staff needs to protect the neck from ultraviolet rays, the first flexible protective component 201 independently protects. Specifically, the first flexible protective component 201 is a protective cloth.

[0037] Furthermore, a plurality of through holes 203 are provided on the surface of the first flexible protective component 201. One through hole 203 can improve the ventilation and air permeability of the first flexible protective component 201 without affecting the ultraviolet isolation of the first flexible protective component 201.

[0038] In addition, when the staff needs to protect their neck from wind, the first flexible protective component 201 and the second flexible protective component 202 cooperate to provide protection. The second flexible protective component 202 is detachably connected to the first flexible protective component 201, so that the second flexible protective component 202 and the first flexible protective component 201 are attached to each other as a whole. It is understandable that the first flexible protective component 201 and the second flexible protective component 202 can increase the thickness after being combined with each other, thereby blocking the cold wind. Specifically, the second flexible protective component 202 uses a thermal insulation cloth.

[0039] In some examples, the first flexible protective component 201 and the second flexible protective component 202 are detachably connected by Velcro. The surface of the first flexible protective component 201 is provided with a first Velcro 204, and the surface of the second flexible protective component 202 is provided with a second Velcro 205. It is understandable that the first Velcro 204 and the second Velcro 205 can be bonded to or disassembled from each other, thereby achieving a detachable connection between the first flexible protective component 201 and the second flexible protective component 202.

[0040] In some examples, the adjustable helmet further includes an adjustment mechanism 400 and a fixing strap assembly 300, and the fixing strap assembly 300 is equivalent to a chin strap in function. When a worker wears the helmet of the present application, the fixing strap assembly 300 is tied to the chin of the worker to prevent the helmet from falling on the worker's head, causing the head to lose protection, thereby forming a safety hazard. It is understandable that the fixing strap assembly 300 is arranged on the helmet shell 101.

[0041] Furthermore, the adjustment mechanism 400 is connected to the fixing strap assembly 300, and the adjustment mechanism 400 is used to adjust the total length of the fixing strap assembly 300 so that the fixing strap assembly 300 can adapt to the chin of different workers, thereby improving the versatility of the safety helmet and ensuring the protective effect of the safety helmet.

[0042] In some examples, such as Figure 2As shown, the adjustment mechanism 400 includes a housing 401 and a fixing assembly. The housing 401 is formed as a hollow structure, and the fixing assembly is located in the inner cavity of the housing 401 .

[0043] Meanwhile, the fixing belt assembly 300 includes a first fixing belt 301 and a second fixing belt 302, and the first fixing belt 301 and the second fixing belt 302 are respectively located on opposite sides of the cap shell 101. It can be understood that the length of the first fixing belt 301 and the second fixing belt 302 after being combined with each other is the total length of the fixing belt assembly 300. Further, when the length of the first fixing belt 301 and the second fixing belt 302 overlapping each other is large, the total length of the fixing belt assembly 300 is small; when the length of the first fixing belt 301 and the second fixing belt 302 overlapping each other is small, the total length of the fixing belt assembly 300 is large.

[0044] The adjustment mechanism 400 is fixed to the first fixing belt 301 , and the second fixing belt 302 is locked to the adjustment mechanism 400 through a fixing assembly, thereby determining the length of the first fixing belt 301 and the second fixing belt 302 after being combined with each other, that is, the total length of the fixing belt assembly 300 .

[0045] Furthermore, an insertion port 402 and a through-port 403 are provided on opposite sides of the housing 401, and the second fixing belt 302 is inserted into the housing 401 through the insertion port 402, and passes through the housing 401 through the through-port 403. It can be understood that the positions of the insertion port 402 and the through-port 403 can ensure that the second fixing belt 302 is flatly attached to the first fixing belt 301 when passing through the housing 401, thereby ensuring the comfort of the staff.

[0046] The length of the second fixing belt 302 penetrating into the inner cavity of the housing 401 can be adjusted. After the length of the second fixing belt 302 is adjusted, the second fixing belt 302 is locked in position by the fixing assembly, and the relative position of the second fixing belt 302 and the first fixing belt 301 is determined, that is, the total length of the fixing belt assembly 300 is determined. It is convenient for the staff to adjust the tightness of the first fixing belt 301 and the second fixing belt 302 according to their own habits to adapt to their own chin.

[0047] In some examples, the fixing assembly includes a driving assembly, a transmission assembly, a rotating assembly, and a locking assembly. The driving assembly can move, and during the movement, the driving assembly drives the transmission assembly to rotate, and the transmission assembly drives the rotating assembly to rotate together during the rotation. At the same time, the locking assembly is used to lock the second fixing belt 302, and the rotating assembly drives the locking assembly to move by its own rotation, so that the locking assembly is close to the second fixing belt 302, or away from the second fixing belt 302.

[0048] When the locking component approaches the second fixing belt 302 , the locking component gradually contacts the second fixing belt 302 , and greater friction is generated between the locking component and the second fixing belt 302 , thereby preventing the second fixing belt 302 from further moving, thereby achieving a locking effect.

[0049] When the locking assembly moves away from the second fixing belt 302, the locking assembly gradually releases the second fixing belt 302, allowing the second fixing belt 302 to move relatively freely in the housing 401, thereby adjusting the total length of the fixing belt assembly 300 to adapt to the chin of the staff.

[0050] In some examples, such as Figure 3 and Figure 4 As shown, the driving assembly includes a screw rod 501 and a slide plate 502. The two ends of the screw rod 501 are respectively connected to the opposite sides of the housing 401. Specifically, one end of the screw rod 501 is connected to the side of the housing 401 where the insertion port 402 is provided, and the other end of the screw rod 501 is connected to the side of the housing 401 where the through port 403 is provided. Both ends of the screw rod 501 are connected to the housing 401 through bearings to ensure that the screw rod 501 can rotate freely.

[0051] Furthermore, the slide plate 502 is threadedly connected with the screw rod 501 to form a screw rod nut mechanism. Meanwhile, a rack 503 is provided on the surface of the slide plate 502, and the transmission assembly includes a gear 504, and the gear 504 and the rack 503 are meshed with each other.

[0052] It is understandable that, as the screw rod 501 rotates, under the effect of the threaded connection, the slide plate 502 moves along the axial direction of the screw rod 501, and the rack 503 also moves accordingly. As the rack 503 moves, the rack 503 can drive the gear 504 to rotate.

[0053] Specifically, one end of the screw rod 501 passes through the housing 401, and a turntable 505 is provided at the portion passing through the housing 401, and the staff can manually rotate the screw rod 501 through the turntable 505. The outer wall circumference of the turntable 505 is provided with anti-skid edges, which can increase the roughness of the outer wall circumference of the turntable 505, thereby preventing the turntable 505 from slipping out of the hand when rotating, and improving the stability of the device during use.

[0054] In addition, the transmission assembly also includes a rotating shaft 506, and the gear 504 is fixedly connected to the rotating shaft 506. The two ends of the rotating shaft 506 are rotatably connected to the housing 401 through bearings. It can be understood that the axial direction of the rotating shaft 506 is approximately perpendicular to the axial direction of the screw rod 501 to ensure the mutual engagement of the gear 504 and the rack 503.

[0055] In some examples, the rotating assembly includes a first connecting rod 507 and a second connecting rod 508, which are hinged to each other to form a connecting rod mechanism. The first connecting rod 507 is fixedly connected to the rotating shaft 506, and the second connecting rod 508 is hinged to the locking assembly.

[0056] It is understandable that the gear 504 can drive the rotating shaft 506 to rotate together, and the rotating shaft 506 drives the entire body formed by the first connecting rod 507 and the second connecting rod 508 to rotate during the rotation process, thereby driving the locking assembly to move.

[0057] In some examples, the locking assembly includes a lifting plate 509 and a locking structure 510. The lifting plate 509 is hinged to the second connecting rod 508. When the first connecting rod 507 and the second connecting rod 508 rotate as a whole, the lifting plate 509 can move accordingly.

[0058] Furthermore, the locking structure 510 is disposed on the surface of the lifting plate 509 facing the second fixing belt 302, and the locking structure 510 is used to increase the friction between the lifting plate 509 and the second fixing belt 302. Specifically, the locking structure 510 adopts a fixing cone.

[0059] When the first connecting rod 507 and the second connecting rod 508 drive the lifting plate 509 to rise in height, the locking structure 510 gradually moves away from and releases the second fixing belt 302 , and the second fixing belt 302 can move freely in the housing 401 .

[0060] When the first connecting rod 507 and the second connecting rod 508 drive the lifting plate 509 to lower its height, the locking structure 510 gradually approaches and is inserted into the second fixing belt 302 to a certain extent, thereby locking the position of the second fixing belt 302 .

[0061] In traditional helmets, the component used to adjust the length of the fixing strap is usually an adjustment buckle, which has a poor locking effect on the fixing strap. When the helmet is used for a long time, the fixing strap is easy to loosen from the adjustment buckle, making it difficult to keep the fixing strap at an appropriate length for a long time. Workers need to frequently operate the adjustment buckle to prevent the helmet from falling off the head due to loosening of the fixing strap.

[0062] The present application drives the screw 501 to rotate by rotating the turntable 505, and utilizes the threaded rotation force of the outer wall of the screw 501 to achieve precise control of the slide plate 502 and the mechanism connected to the slide plate 502. This method is more stable than the traditional direct pulling or tension adjustment buckle, and can ensure the fine adjustment of the length of the second fixing belt 302 to meet the personalized needs of different staff members. The adjustment mechanism 400 combines the screw nut mechanism, the gear rack mechanism and the connecting rod mechanism. The staff only needs to simply rotate the turntable 505 to achieve the fixation and adjustment of the second fixing belt 302 through mechanical linkage. The operation is simple and intuitive.

[0063] When the rack 503 moves, the gear 504 drives the rotating shaft 506 to rotate, thereby pushing the lifting plate 509 and the locking structure 510 to move, and finally inserting the locking structure 510 into the second fixing belt 302 to ensure that the second fixing belt 302 is firmly locked, avoiding safety hazards caused by loose fixation. This fixing method allows the user to accurately adjust the tightness of the first fixing belt 301 and the second fixing belt 302 by adjusting the rotating disk 505 according to the size of their head circumference and wearing habits, so that the helmet can be suitable for different people, improving versatility and applicability.

[0064] In some examples, the pitch of the screw rod 501 is smaller than the pitch of the rack 503, that is, the screw rod 501 rotates multiple times to drive the slide plate 502 to move a pitch length, thereby driving the gear 504 to rotate accordingly. With this arrangement, when the staff drives the locking assembly to contact the second fixing belt 302 or releases the second fixing belt 302, the rotation stroke of the screw rod 501 increases, which is conducive to reducing the sensitivity of the adjustment mechanism 400.

[0065] For example, when the locking assembly has been inserted into the second fixing belt 302, the staff needs to rotate the screw 501 for multiple turns to completely disengage the locking assembly from the second fixing belt 302, so as to avoid the staff's accidental touch causing the second fixing belt 302 to be completely released, and to prevent the second fixing belt 302 from accidentally loosening. Furthermore, the increase in the rotation stroke of the screw 501 is conducive to the fine adjustment of the locking assembly, which is convenient for reducing the speed of the locking assembly approaching or moving away from the second fixing belt 302. As the movement speed of the locking assembly decreases, it is easier for the staff to adjust the locking assembly until the locking structure 510 just contacts the surface of the second fixing belt 302. At this time, the locking structure 510 is not fully inserted into the second fixing belt 302, but it can still provide a certain adjustment resistance for the second fixing belt 302. This adjustment resistance can reduce the movement speed of the second fixing belt 302 when it is pulled, which is conducive to the fine adjustment of the position of the second fixing belt 302.

[0066] In some examples, such as Figure 5As shown, the fixing assembly further includes a guiding assembly, and the guiding assembly includes a plurality of guiding components 511 . Specifically, the guiding components 511 are telescopic rods.

[0067] Furthermore, the guide component 511 connects the housing 401 and the lifting plate 509 . It can be understood that the axial direction of the guide component 511 is approximately perpendicular to the second fixing belt 302 , thereby limiting the movement of the lifting plate 509 in the housing 401 toward or away from the second fixing belt 302 .

[0068] In some examples, a limiting assembly is provided between the slide plate 502 and the housing 401 , and the limiting assembly is used to limit the movement of the slide plate 502 along the lead screw 501 .

[0069] Furthermore, the limiting assembly includes a limiting groove 512 and a limiting block 513, wherein the limiting groove 512 is provided on the housing 401, and the limiting block 513 is provided on the slide plate 502 and embedded in the limiting groove 512. Under the action of the limiting assembly, the slide plate 502 moves along the extension direction of the limiting groove 512, thereby preventing the slide plate 502 from moving under the drive of the screw rod 501, and ensuring that the screw rod nut mechanism works effectively.

[0070] Specifically, the inner cavity of the limiting groove 512 cooperates with the outer wall of the limiting block 513 and both are in a "T" shape, so that one end of the limiting block 513 can always remain embedded in the inner cavity of the limiting groove 512, thereby improving the stability of the limiting assembly during use.

[0071] In the actual implementation process, the setting of the first flexible protective component 201 can prevent the worker's neck from being directly exposed to ultraviolet rays. The setting of the through hole 203 can improve the ventilation and air permeability of the first flexible protective component 201. The second flexible protective component 202 is connected to the first flexible protective component 201 through the first Velcro 204 and the second Velcro 205, so that the neck can be kept warm in winter, which solves the problem that the traditional hat shell 101 does not have neck protection during actual use.

[0072] The second fixing belt 302 passes through the chin of the staff member and penetrates into the inner cavity of the housing 401, and the staff member can adjust the tightness of the second fixing belt 302. In this process, the turntable 505 is rotated to drive the screw rod 501 to rotate. Under the limiting action of the limiting groove 512 and the limiting block 513, the screw rod 501 moves along the screw rod 501 through the rotation force of the outer wall thread. The slide plate 502 drives the rack 503 to slide. Since the rack 503 is meshed with the gear 504, when the rack 503 slides, the gear 504 drives the rotating shaft 506 to rotate, so that the first connecting rod 507 and the second connecting rod 508 push the lifting plate 509 and the fixed cone to slide along a straight line under the limiting action of multiple telescopic rods. The fixing cone can be inserted into the second fixing belt 302 and lock the position of the second fixing belt 302, thereby determining the total length of the fixing belt assembly 300, making it convenient for the staff to adjust the tightness of the first fixing belt 301 and the second fixing belt 302 according to their own habits.

[0073] In some selectable embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiment presented and described in the flow chart of the application is provided by way of example, for the purpose of providing a more comprehensive understanding of technology. The disclosed method is not limited to the operation and logic flow presented herein. Selectable embodiments are expected, wherein the order of various operations is changed and the sub-operation of a part described as a larger operation is performed independently.

[0074] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A safety helmet that is easy to adjust, characterized in that: include: Cap shell; The protective mechanism comprises a first flexible protective component and a second flexible protective component. The first flexible protective component is fixedly connected to the cap shell and covers the neck of the worker; the second flexible protective component is detachably connected to the first flexible protective component.

2. The easily adjustable safety helmet according to claim 1, characterized in that: The first flexible protective component and the second flexible protective component are detachably connected via Velcro.

3. The easily adjustable safety helmet according to claim 1, characterized in that: The adjustable safety helmet further comprises an adjustment mechanism and a fixing belt assembly. The fixing belt assembly is arranged on the helmet shell, and the adjustment mechanism is connected to the fixing belt assembly to adjust the length of the fixing belt assembly.

4. The easily adjustable safety helmet according to claim 3, characterized in that: The adjustment mechanism includes a housing and a fixing assembly located in the inner cavity of the housing, the fixing belt assembly includes a first fixing belt and a second fixing belt, the adjustment mechanism is fixedly arranged on the first fixing belt, and the second fixing belt is locked to the adjustment mechanism through the fixing assembly.

5. The easily adjustable safety helmet according to claim 4, characterized in that: The fixing assembly includes a driving assembly, a transmission assembly, a rotating assembly and a locking assembly. The driving assembly drives the transmission assembly to rotate by moving, and the transmission assembly drives the locking assembly to approach the second fixing belt or move away from the second fixing belt through the rotating assembly.

6. The easily adjustable safety helmet according to claim 5, characterized in that: The driving assembly includes a screw and a slide plate screwed to the screw, a rack is provided on the surface of the slide plate, and the transmission assembly includes a gear meshed with the rack; the slide plate can move along the screw and drive the gear to rotate through the rack.

7. The easily adjustable safety helmet according to claim 5, characterized in that: The rotating assembly includes a first connecting rod and a second connecting rod hinged to each other, the first connecting rod is fixedly connected to the transmission assembly, and the second connecting rod is hinged to the locking assembly.

8. The easily adjustable safety helmet according to claim 5, characterized in that: The locking assembly includes a lifting plate and a locking structure disposed on the lifting plate, wherein the locking structure is used to abut against the second fixing belt to lock the second fixing belt.

9. The easily adjustable safety helmet according to claim 8, characterized in that: The fixing assembly further comprises a guide assembly, wherein the guide assembly comprises a guide component, and the guide component connects the housing and the lifting plate to guide the lifting plate to move along the axial direction of the guide component.

10. The easily adjustable safety helmet according to claim 6, characterized in that: A limiting assembly is provided between the slide plate and the housing, and the limiting assembly is used to limit the slide plate to move along the screw rod.

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