Lens linkage structure in helmet and helmet

Abstract

The utility model relates to a helmet inner mirror piece linkage structure and helmet, it includes inner mirror piece, movable mechanism and switch mechanism. Movable mechanism includes base and rocker, base is connected with helmet body, and rocker is equipped with inner mirror piece, and with base movably connected, and rocker and base are equipped with limiting post and limiting slot respectively, limiting post is arranged in limiting slot, and limiting slot is equipped with first position and second position, and rocker is relative base movable, to drive limiting post to unlock from one position among first position and second position and slide to lock in another position, and when limiting post is located first position, inner mirror piece avoids window, and when limiting post is located second position, inner mirror piece covers window. Switch mechanism includes push button, push button is connected with rocker transmission, and is movably arranged on helmet body, and push button is relative helmet body movable, to drive rocker relative base movable.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment technology, specifically to a helmet internal lens linkage structure and a helmet. Background Technology

[0002] A helmet is a piece of equipment that protects the head and provides safety for riders when riding motorcycles, electric bikes, and bicycles. To adapt to the specific needs of different riding scenarios, some helmets on the market also include a retractable or retractable inner visor. Specifically, the inner visor can be retracted when riding in sunny weather to filter out glare from the sun, while it can be retracted in dimly lit environments such as tunnels, at night, and in rainy weather to ensure clear vision.

[0003] Existing technology discloses a helmet visor mounting structure, which includes a visor hook, a visor body, and a pushing device. The visor hook is movably mounted on the helmet body via a rotating shaft and connected to the visor body. The pushing device is connected to the visor hook. Specifically, when the pushing device is activated, it can move the visor hook relative to the helmet body, thereby moving the visor body relative to the helmet body to achieve the function of raising or lowering the inner visor. However, the visor hook is fixed solely by the frictional force of the rotating shaft. Under slight external vibrations or shaking, the visor hook may cause the inner visor mounted on it to shift, thus affecting the user experience and safety. Utility Model Content

[0004] The purpose of this invention is to provide a helmet internal lens linkage structure and a helmet to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] On one hand, this utility model provides a helmet inner lens linkage structure for mounting on a helmet body, wherein the front side of the helmet body has a window, comprising: an inner lens; a movable mechanism including a base and a rocker arm, the base being connected to the helmet body, the rocker arm being mounted with the inner lens and movably connected to the base, the rocker arm and the base respectively having a limiting post and a limiting groove, the limiting post passing through the limiting groove, the limiting groove having a first position and a second position, the rocker arm moving relative to the base to drive the limiting post to unlock from one of the first position and the second position and slide to lock to the other position, and when the limiting post is in the first position, the inner lens avoids the window, and when the limiting post is in the second position, the inner lens covers the window; a switching mechanism including a push button, the push button being drivenly connected to the rocker arm and movably disposed on the helmet body, and the push button moving relative to the helmet body to drive the rocker arm to move relative to the base.

[0007] In some embodiments of this application, the rocker arm is provided with the limiting post, and the base is provided with the limiting groove; the base is provided with two ratchet teeth, which extend in the same direction and are arranged side by side with intervals, forming the limiting groove between the two ratchet teeth; the first position and the second position are arranged at intervals in the extending direction of the ratchet teeth; at least one ratchet tooth is elastically connected to the base so that the distance between the two ratchet teeth is adjustable; when the rocker arm moves relative to the base, the two ratchet teeth overcome the elastic force and move away from each other, and the limiting post is unlocked to switch between the first position and the second position; when the limiting post is located in the first position or the second position and the rocker arm is stationary relative to the base, the two ratchet teeth move closer together under the drive of the elastic force, and the limiting post is locked.

[0008] In some embodiments of this application, the ratchet includes a first recess, a second recess, and a connecting portion for smoothly transitioning the first recess and the second recess, and a first position is formed between the first recesses of the two ratchets, and a second position is formed between the second recesses of the two ratchets; the base is also provided with a supporting arch bridge, at least one of the ratchets is arranged in a suspended manner, and the connecting portion is connected to the top of the supporting arch bridge so that the ratchet is elastically connected to the base.

[0009] In some embodiments of this application, the base is provided with a shaft hole and the limiting groove, and a guide rail extending circumferentially along the shaft hole is formed. The limiting groove extends circumferentially along the shaft hole, and the first position and the second position are arranged at intervals in the extending direction of the limiting groove. The rocker arm includes a body and a rotating shaft, a limiting block and the limiting post disposed on the body. The rotating shaft passes through the shaft hole so that the rocker arm is rotatably connected to the base. A guide groove is formed between the limiting block and the body, and when the rocker arm rotates relative to the base, the guide groove slides on the guide rail.

[0010] In some embodiments of this application, the base is further provided with two limiting parts, and the two limiting parts are respectively located at both ends of the guide rail; the body is provided with two mating parts, one of the mating parts, the guide groove and the other mating part are arranged sequentially in the circumferential direction of the rotating shaft and located between the two limiting parts, and when the rocker arm rotates relative to the base until one of the mating parts abuts against the corresponding limiting part, the limiting post is located in the first position, and when the rocker arm rotates relative to the base until the other mating part abuts against the corresponding limiting part, the limiting post is located in the second position.

[0011] In some embodiments of this application, the helmet inner lens linkage structure further includes a transmission component, which is arranged in a bent shape and connected at both ends to the rocker arm and the push button, respectively. The rocker arm is rotatably mounted on the base, and the push button is movably mounted on the helmet body. The push button moves relative to the helmet body to drive the rocker arm to rotate relative to the base.

[0012] In some embodiments of this application, the switching mechanism includes a main body connected to the helmet body, and a push button slidably connected to the main body so that the push button is movably disposed on the helmet body; the transmission component includes a steel wire rope and a sleeve arranged in a bent shape, the steel wire rope passing through the sleeve, and both ends of the steel wire rope extending out of the sleeve and respectively connected to the rocker arm and the push button, and both ends of the sleeve respectively connected to the main body and the base.

[0013] In some embodiments of this application, a first sliding groove is provided on the main body; the switch structure further includes an outer cover, which is connected to the main body, and a second sliding strip is provided on the side of the outer cover facing away from the main body; The push button has a U-shaped structure and includes a first part, a second part, and a third part connected to the first part and the second part respectively. The first part is located between the main body and the outer cover and is provided with a first slide bar, which passes through the first slide groove. The second part is located on the side of the outer cover facing away from the main body and is provided with a second slide groove, which is provided with a second slide bar. The first slide bar, the second slide bar, the first slide groove, and the second slide groove all extend in the same direction.

[0014] In some embodiments of this application, the active mechanism further includes a fixed base and an active arm. The fixed base is connected to the helmet body, and the active arm is movably connected to the fixed base. The fixed base and the base, as well as the active arm and the rocker arm, are arranged mirror images of each other on both sides of the window. The inner lens extends in an arc shape, and its two ends are respectively connected to the active arm and the rocker arm.

[0015] On the other hand, this utility model provides a helmet, which includes a helmet body and a helmet inner lens linkage structure as described in any of the above embodiments. The helmet body is connected to the base and the switching mechanism respectively, and the switching mechanism is located below the movable mechanism.

[0016] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects: In the helmet inner lens linkage structure of this utility model embodiment, when the limiting post is in the first position, the inner lens avoids the window, and the user's field of vision is not obstructed by the inner lens. When the limiting post is in the second position, the inner lens covers the window, which can play a blocking role to adapt to the needs of different usage scenarios and conditions. In the initial state, the rocker arm and the base are relatively fixed, and the limiting post is locked in the first or second position, so that the inner lens is kept in the state of avoiding the window or covering the window. When it is necessary to switch the state of the inner lens, the user applies force to the push button and moves it relative to the helmet body along a preset trajectory, which drives the rocker arm to move relative to the base. During this process, the limiting post first unlocks from the current position and slides to another position and locks in the other position, so that the inner lens can switch between the state of avoiding the window and the state of covering the window, and remain in the switched state.

[0017] Therefore, through the coordinated action of the limiting post and the limiting groove, the force applied to the push button can drive the limiting post to unlock from one position within the limiting groove, ensuring that the rocker arm can move smoothly relative to the base, allowing the inner lens to switch between different states. Furthermore, the limiting post and the limiting groove can also provide a locking mechanism for the relative rotation between the rocker arm and the base, thereby ensuring that the avoidance window and coverage window states of the inner lens can be stably maintained when the push button is not under force, reducing the possibility of the inner lens shifting due to slight external vibrations or shaking, thus improving the user experience and safety. Attached Figure Description

[0018] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein: Figure 1 This is a schematic diagram of a helmet internal lens linkage structure according to an exemplary embodiment.

[0019] Figure 2 yes Figure 1 A structural diagram from another perspective.

[0020] Figure 3 yes Figure 1 A schematic diagram of the specific structure of the base and rocker arm.

[0021] Figure 4 yes Figure 1 A schematic diagram of the specific structure of the switching mechanism in the diagram.

[0022] Figure 5 This is a schematic diagram of the structure of a helmet according to an exemplary embodiment.

[0023] Figure 6yes Figure 5 A structural diagram from another perspective.

[0024] The annotations in the attached figures are explained as follows: 1. Inner lens; 2. Movable mechanism; 21. Base; 211. Racket; 2111. First recess; 2112. Second recess; 2113. Connecting part; 212. Supporting arch bridge; 213. Limiting groove; 2131. First position; 2132. Second position; 214. Shaft hole; 215. Guide rail; 216. Limiting part; 22. Rocker arm; 221. Body; 2211. Mating part; 222. Rotating shaft; 223. Limiting block; 224. Limiting post; 225. Guide groove; 23. Fixed seat; 24. Movable arm; 3. Switching mechanism; 31. Push button; 311. First part; 3111. First slide bar; 312. Second part; 3121. Second slide groove; 313. Third part; 32. Main body; 321. First slide groove; 33. Outer cover; 331. Second slide bar; 4. Transmission components; 41. Wire rope; 42. Sleeve; 5. Helmet body. Detailed Implementation

[0025] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0026] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0027] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0028] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6The helmet inner lens linkage structure provided in one embodiment of this utility model is used to be installed on the helmet body 5, and the front side of the helmet body 5 is provided with a window. It mainly includes an inner lens 1, a moving mechanism 2, and a switching mechanism 3. The moving mechanism 2 includes a base 21 and a rocker arm 22. The base 21 is connected to the helmet body 5. The rocker arm 22 is equipped with the inner lens 1 and is movably connected to the base 21. The rocker arm 22 and the base 21 are respectively provided with a limiting post 224 and a limiting groove 213. The limiting post 224 passes through the limiting groove 213. The limiting groove 213 is provided with a first position 2131 and a second position 2132. The rocker arm 22 moves relative to the base 21 to drive the limiting post 224 to unlock from one of the first position 2131 and the second position 2132 and slide to lock to the other position. When the limiting post 224 is in the first position 2131, the inner lens 1 avoids the window. When the limiting post 224 is in the second position 2132, the inner lens 1 covers the window. The switching mechanism 3 includes a push button 31, which is connected to the rocker arm 22 and is movably mounted on the helmet body 5. The push button 31 moves relative to the helmet body 5 to drive the rocker arm 22 to move relative to the base 21.

[0029] In the helmet inner lens linkage structure of this utility model embodiment, when the limiting post 224 is in the first position 2131, the inner lens 1 avoids the window, and the user's field of vision is not obstructed by the inner lens 1. When the limiting post 224 is in the second position 2132, the inner lens 1 covers the window, which can play a blocking role to adapt to the needs of different usage scenarios and conditions. In the initial state, the rocker arm 22 and the base 21 are relatively fixed, and the limiting post 224 is locked in the first position 2131 or the second position 2132, so that the inner lens 1 is kept in the state of avoiding the window or covering the window. When it is necessary to switch the state of the inner lens 1, the user applies force to the push button 31 and makes it move relative to the helmet body 5 along a preset trajectory, which drives the rocker arm 22 to move relative to the base 21. During this process, the limiting post 224 first unlocks from the current position and slides to another position to lock in the other position, so that the inner lens 1 can switch between the state of avoiding the window and the state of covering the window, and remain in the switched state.

[0030] Thus, through the coordinated action of the limiting post 224 and the limiting groove 213, the force applied to the push button 31 can drive the limiting post 224 to unlock from one position within the limiting groove 213, ensuring that the rocker arm 22 can move smoothly relative to the base 21, allowing the inner lens 1 to switch between different states. Furthermore, the limiting post 224 and the limiting groove 213 can also provide a locking mechanism for the relative rotation between the rocker arm 22 and the base 21, thereby ensuring that when the push button 31 is not under force, the avoidance window and coverage window states of the inner lens 1 can be stably maintained, reducing the possibility of the inner lens 1 shifting due to slight external vibrations or shaking, thereby improving the user experience and safety.

[0031] It should be noted that by cooperating with the limiting post 224 and the limiting groove 213, the active and locking functions are integrated into the active mechanism 2, which also makes the overall structure more compact and reasonable.

[0032] It should be noted that the rocker arm 22 and the base 21 are respectively provided with a limiting post 224 and a limiting groove 213. Alternatively, the rocker arm 22 may be provided with a limiting post 224 and the base 21 may be provided with a limiting groove 213, or the rocker arm 22 may be provided with a limiting groove 213 and the base 21 may be provided with a limiting post 224.

[0033] It is conceivable that the rocker arm 22 and the base 21 are movably connected, either rotatably or movablely. The push button 31 is movably mounted on the helmet 5, either movablely or rotatably mounted on the helmet 5. In this embodiment, the rocker arm 22 is rotatably connected to the base 21, and the push button 31 is movably mounted on the helmet 5.

[0034] Please see Figures 1 to 3 In a specific embodiment, the rocker arm 22 is provided with a limiting post 224, and the base 21 is provided with a limiting groove 213. The base 21 is provided with two ratchet teeth 211, which extend in the same direction and are arranged side-by-side with a gap, forming a limiting groove 213 between them. A first position 2131 and a second position 2132 are arranged at a gap in the extending direction of the ratchet teeth 211. At least one ratchet tooth 211 is elastically connected to the base 21, so that the gap between the two ratchet teeth 211 is adjustable. When the rocker arm 22 moves relative to the base 21, the two ratchet teeth 211 overcome the elastic force and move away from each other, unlocking the limiting post 224 to switch between the first position 2131 and the second position 2132. When the limiting post 224 is located in the first position 2131 or the second position 2132, and the rocker arm 22 is stationary relative to the base 21, the two ratchet teeth 211 move closer together under the drive of the elastic force, locking the limiting post 224.

[0035] When the limiting post 224 is in the first position 2131 or the second position 2132, since at least one ratchet 211 is elastically connected, under the action of elastic force, the two ratchet teeth 211 will move closer to each other, narrowing the gap between them. The limiting post 224 is firmly locked by these two ratchet teeth 211 and cannot move, thus achieving locking. When the user pushes the push button 31, the force is transmitted to the limiting post 224 through the rocker arm 22. The limiting post 224 will squeeze the two ratchet teeth 211. This squeezing force will overcome the elastic force of the ratchet teeth 211, forcing the two ratchet teeth 211 to move away from each other. This temporarily increases the gap in the limiting groove 213, allowing the limiting post 224 to exit from its current position and slide smoothly within the limiting groove 213. When the limiting post 224 slides to another position, the squeezing force on the ratchet 211 disappears, and the elastic force drives the two ratchet 211 to approach each other again, clamping the limiting post 224 to complete the locking of the limiting post 224 in that position. This provides a specific and feasible structural design for the cooperation between the limiting groove 213 and the limiting post 224. Furthermore, the use of elastic force to achieve normally closed locking has the advantages of stable locking force and good seismic resistance.

[0036] In other embodiments, the corresponding structures of the limiting post 224, the first position 2131 and the second position 2132 are all magnetic, and the limiting post 224 can be fixed by magnetic adsorption when it slides to the first position 2131 and the second position 2132.

[0037] In a specific embodiment, the ratchet 211 includes a first recess 2111, a second recess 2112, and a connecting portion 2113 for smoothly connecting the first recess 2111 and the second recess 2112. A first position 2131 is formed between the first recesses 2111 of the two ratchet 211s, and a second position 2132 is formed between the second recesses 2112 of the two ratchet 211s. A supporting arch bridge 212 is also provided on the base 21. At least one ratchet 211 is arranged in a suspended manner, and the connecting portion 2113 is connected to the top of the supporting arch bridge 212, so that the ratchet 211 is elastically connected to the base 21. Through the arrangement of the first recess 2111 and the second recess 2112, the first position 2131 and the second position 2132 can be precisely defined, and the supporting arch bridge 212 can continuously and smoothly provide elastic force, thereby ensuring the stability and reliable operation of the overall structure.

[0038] In this embodiment, both ratchet teeth 211 are arranged in a suspended manner, and two supporting arch bridges 212 are provided, with the tops of the two supporting arch bridges 212 respectively connected to the connecting portions 2113 of the two ratchet teeth 211.

[0039] It is conceivable that the supporting arch bridge 212 is located on the side of the ratchet 211 facing away from the other ratchet 211.

[0040] Please see Figure 2and Figure 3 In a specific embodiment, the base 21 is provided with a shaft hole 214 and a limiting groove 213, and a guide rail 215 extending circumferentially along the shaft hole 214 is formed. The limiting groove 213 extends circumferentially along the shaft hole 214, and the first position 2131 and the second position 2132 are arranged at intervals in the extending direction of the limiting groove 213. The rocker arm 22 includes a body 221 and a rotating shaft 222, a limiting block 223 and a limiting post 224 provided on the body 221. The rotating shaft 222 passes through the shaft hole 214 so that the rocker arm 22 is rotatably connected to the base 21. A guide groove 225 is formed between the limiting block 223 and the body 221, and when the rocker arm 22 rotates relative to the base 21, the guide groove 225 slides on the guide rail 215.

[0041] The shaft hole 214 on the base 21 and the rotating shaft 222 on the rocker arm 22 cooperate to form the basis for the relative rotation of the rocker arm 22 and the base 21. When the rocker arm 22 rotates relative to the base 21, the limiting post 224 slides in the limiting groove 213 and the guide groove 225 slides on the guide rail 215, providing double guidance for the rotation of the rocker arm 22, thereby improving the accuracy and stability of the rotation.

[0042] In this embodiment, the rotating shaft 222 is a clamping structure.

[0043] In other embodiments, the base 21 is further provided with two limiting parts 216, and the two limiting parts 216 are respectively located at both ends of the guide rail 215. The body 221 is provided with two mating parts 2211, one of which, the guide groove 225, and the other mating part 2211 are arranged sequentially in the circumferential direction of the rotating shaft 222 and located between the two limiting parts 216. When the rocker arm 22 rotates relative to the base 21 until one of the mating parts 2211 abuts against the corresponding limiting part 216, the limiting post 224 is located in the first position 2131. When the rocker arm 22 rotates relative to the base 21 until the other mating part 2211 abuts against the corresponding limiting part 216, the limiting post 224 is located in the second position 2132. By specifically setting the limiting part 216 and the cooperating part 2211 and coordinating with each other, the rotation of the rocker arm 22 relative to the base 21 can be limited to a controllable range, avoiding excessive rotation of the rocker arm 22, thereby further improving the overall stability and reliability of the moving mechanism 2.

[0044] Please see Figure 1 , Figure 2 and Figure 5In a specific embodiment, the helmet inner lens linkage structure also includes a transmission component 4, which is arranged in a bent shape and connected at both ends to a rocker arm 22 and a push button 31, respectively. The rocker arm 22 is rotatably mounted on the base 21, and the push button 31 is movably mounted on the helmet body 5. The push button 31 moves relative to the helmet body 5 to drive the rocker arm 22 to rotate relative to the base 21. The user can simply push or pull the push button 31 to move it relative to the helmet body 5 to switch the state of the inner lens 1, which is relatively simple to operate. The bent shape of the transmission component 4 can better adapt to the spatial positional relationship between the push button 31 and the rocker arm 22, and can accurately transmit motion, converting the movement of the push button 31 into the rotation of the rocker arm.

[0045] Please see Figure 4 and Figure 5 In a specific embodiment, the switching mechanism 3 includes a main body 32 connected to the helmet body 5, and a push button 31 slidably connected to the main body 32 so that the push button is movably mounted on the helmet body 5. The transmission component 4 includes a steel wire rope 41 and a sleeve 42, both arranged in a bent shape. The steel wire rope 41 passes through the sleeve 42, with both ends extending out of the sleeve 42 and connected to the rocker arm 22 and the push button 31 respectively. The two ends of the sleeve 42 are connected to the main body 32 and the base 21 respectively. The steel wire rope 41 has a certain strength and hardness, enabling it to effectively transmit force. The sleeve 42 provides a smooth inner wall channel for the steel wire rope 41, reducing friction and positioning the movement of the steel wire rope 41 to ensure that the movement of the push button 31 can be accurately converted into the rotation of the rocker arm 22. In this embodiment, the steel wire rope 41 is a semi-hard steel wire rope 41.

[0046] Please see Figure 2 In this embodiment, both the main body 32 and the base 21 are provided with pull wire sleeve seats. Both ends of the sleeve 42 are provided with copper clips, and the two copper clips are pressed into the two pull wire sleeve seats respectively, so that the two ends of the sleeve 42 are connected to the main body 32 and the base 21 respectively.

[0047] In this embodiment, the rocker arm 22 and the push button 31 are respectively provided with a pull wire post head holder and a pull wire T head holder. The two ends of the wire rope 41 are respectively provided with a pull wire post head and a pull wire T head that can be inserted into the pull wire post head holder and the pull wire T head holder, which can realize the quick assembly and disassembly of the transmission component 4.

[0048] Please see Figure 4In a specific embodiment, the main body 32 has a first sliding groove 321. The switch structure also includes an outer cover 33, which is connected to the main body 32, and has a second sliding bar 331 on the side facing away from the main body 32. The push button 31 has a U-shaped structure and includes a first part 311, a second part 312, and a third part 313 connected to the first part 311 and the second part 312 respectively. The first part 311 is located between the main body 32 and the outer cover 33 and has a first sliding bar 3111, which passes through the first sliding groove 321. The second part 312 is located on the side of the outer cover 33 facing away from the main body 32 and has a second sliding groove 3121, with the second sliding bar 331 passing through the second sliding groove 3121. The first sliding bar 3111, the second sliding bar 331, the first sliding groove 321, and the second sliding groove 3121 all extend in the same direction.

[0049] The sliding cooperation between the first slider 3111 and the first slide groove 321, as well as the second slider 331 and the second slide groove 3121, improves the smoothness and stability of the push button 31 operation, thereby enhancing the user experience and feel. Specifically, the second part 312 is the part used for user operation.

[0050] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6 In a specific embodiment, the movable mechanism 2 further includes a fixed base 23 and a movable arm 24. The fixed base 23 is connected to the helmet body 5, and the movable arm 24 is movably connected to the fixed base 23. The fixed base 23 and the base 21, as well as the movable arm 24 and the rocker arm 22, are arranged mirror images of each other on both sides of the window. The inner lens 1 extends in an arc shape, with its two ends connected to the movable arm 24 and the rocker arm 22 respectively, so that both ends of the inner lens 1 can rotate relative to the helmet body 5. This provides support for the inner lens 1 from both sides of the window and allows it to rotate adaptively, thereby improving its operational stability and making the rotation process of the inner lens 1 smoother.

[0051] It should be noted that the movable arm 24 and the fixed base 23 are arranged in a similar structure to the rocker arm 22 and the base 21, respectively. The movable arm 24 can also be connected to another switching mechanism 3. In this embodiment, only one switching mechanism 3 is provided and is connected to the rocker arm 22. The base 21 and the rocker arm 22 act as the active structure, and the movable arm 24 and the fixed base 23 act as the driven structure.

[0052] Specifically, the rocker arm 22 and the base 21 form the active component, and the movable arm 24 and the fixed seat 23 form the driven component. Force is applied to the switching mechanism 3 to make the active component operate, and the driven component is driven to operate smoothly through the inner lens 1.

[0053] Please see Figure 1In the above embodiment, the inner lens 1 extends in an arc shape and has a locking block at its end. The body 221 has a clamping groove and a locking slot. The clamping groove is located on the side of the body 221 facing away from the base 21. The end of the inner lens 1 is clamped in the clamping groove, and the locking block is embedded in the locking slot, thereby enabling the inner lens 1 to be mounted on the rocker arm 22. This provides the advantages of quick and simple assembly and stable and reliable connection. In this embodiment, the end of the inner lens 1, the locking block, and the clamping groove of the body 221 all have a certain degree of elasticity. Appropriate force can quickly insert or release the inner lens 1 into the rocker arm 22, thereby achieving quick installation and removal of the inner lens 1 for cleaning or replacement.

[0054] Please see Figure 5 and Figure 6 On the other hand, this utility model provides a helmet, which includes a helmet body 5 and a helmet inner lens linkage structure of any of the above embodiments. The helmet body 5 is connected to the base 21 and the switch mechanism 3 respectively, and the switch mechanism 3 is located below the movable mechanism 2. This arrangement is more in line with the user's operating habits and is more convenient to operate.

[0055] In this embodiment, the active component formed by the rocker arm 22 and the base 21 and the switching mechanism 3 are both located on the left side of the helmet body 5, and the switching mechanism 3 is located at the lower left edge of the helmet body 5.

[0056] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A helmet internal lens linkage structure for mounting on a helmet body, wherein the helmet body has a window on its front side, characterized in that, include: Inner lens; The movable mechanism includes a base and a rocker arm. The base is connected to the helmet body. The rocker arm is equipped with the inner lens and is movably connected to the base. The rocker arm and the base are respectively provided with a limiting post and a limiting groove. The limiting post passes through the limiting groove. The limiting groove has a first position and a second position. The rocker arm moves relative to the base to drive the limiting post to unlock from one of the first position and the second position and slide to lock to the other position. When the limiting post is in the first position, the inner lens avoids the window. When the limiting post is in the second position, the inner lens covers the window. The switching mechanism includes a push button, which is connected to the rocker arm and is movably mounted on the helmet. The push button moves relative to the helmet to drive the rocker arm to move relative to the base.

2. The helmet internal lens linkage structure according to claim 1, characterized in that, The rocker arm is provided with the limiting post, and the base is provided with the limiting groove; The base is provided with two ratchet teeth, which extend in the same direction and are arranged side by side with intervals. The limiting groove is formed between the two ratchet teeth. The first position and the second position are arranged at intervals in the extending direction of the ratchet teeth. At least one ratchet tooth is elastically connected to the base so that the distance between the two ratchet teeth is adjustable. When the rocker arm moves relative to the base, the two ratchet teeth overcome the elastic force and move away from each other, and the limiting post is unlocked to switch between the first position and the second position; When the limiting post is in the first position or the second position and the rocker arm is stationary relative to the base, the two ratchet teeth approach each other under the drive of elastic force, and the limiting post is locked.

3. The helmet internal lens linkage structure according to claim 2, characterized in that, The ratchet includes a first recess, a second recess, and a connecting portion for smoothly transitioning between the first recess and the second recess, wherein the first position is formed between the first recesses of the two ratchet teeth, and the second position is formed between the second recesses of the two ratchet teeth. The base is also provided with a supporting arch bridge, at least one of the ratchet teeth is arranged in a suspended manner, and the connecting part is connected to the top of the supporting arch bridge so that the ratchet teeth are elastically connected to the base.

4. The helmet internal lens linkage structure according to claim 1, characterized in that, The base is provided with a shaft hole and the limiting groove, and a guide rail extending circumferentially along the shaft hole is formed. The limiting groove extends circumferentially along the shaft hole, and the first position and the second position are arranged at intervals in the extending direction of the limiting groove. The rocker arm includes a body and a rotating shaft, a limiting block and a limiting post disposed on the body. The rotating shaft passes through the shaft hole so that the rocker arm is rotatably connected to the base. A guide groove is formed between the limiting block and the body, and when the rocker arm rotates relative to the base, the guide groove slides on the guide rail.

5. The helmet internal lens linkage structure according to claim 4, characterized in that, The base is also provided with two limiting parts, and the two limiting parts are respectively located at both ends of the guide rail; The main body is provided with two mating parts. One mating part, the guide groove and the other mating part are arranged in sequence in the circumferential direction of the rotating shaft and located between the two limiting parts. When the rocker arm rotates relative to the base until one of the mating parts abuts against the corresponding limiting part, the limiting post is located in the first position. When the rocker arm rotates relative to the base until the other mating part abuts against the corresponding limiting part, the limiting post is located in the second position.

6. The helmet internal lens linkage structure according to claim 1, characterized in that, It also includes a transmission component, which is arranged in a bent shape and has its two ends connected to the rocker arm and the push button, respectively. The rocker arm is rotatably mounted on the base, and the push button is movably mounted on the helmet body. The push button moves relative to the helmet body to drive the rocker arm to rotate relative to the base.

7. The helmet internal lens linkage structure according to claim 6, characterized in that, The switching mechanism includes a main body connected to the helmet body, and a push button slidably connected to the main body so that the push button is movably disposed on the helmet body; The transmission component includes a steel wire rope and a sleeve, both of which are arranged in a bent shape. The steel wire rope passes through the sleeve, and both ends of the steel wire rope extend out of the sleeve and are respectively connected to the rocker arm and the push button. The two ends of the sleeve are respectively connected to the main body and the base.

8. The helmet internal lens linkage structure according to claim 7, characterized in that, The main body is provided with a first sliding groove; The switching mechanism also includes an outer cover, which is connected to the main body, and a second slide bar is provided on the side of the outer cover facing away from the main body; The push button has a U-shaped structure and includes a first part, a second part, and a third part connected to the first part and the second part respectively. The first part is located between the main body and the outer cover and is provided with a first slide bar, which passes through the first slide groove. The second part is located on the side of the outer cover facing away from the main body and is provided with a second slide groove, which is provided with a second slide bar. The first slide bar, the second slide bar, the first slide groove, and the second slide groove all extend in the same direction.

9. The helmet internal lens linkage structure according to claim 1, characterized in that, The movable mechanism also includes a fixed base and a movable arm. The fixed base is connected to the helmet body, and the movable arm is movably connected to the fixed base. The fixed base and the base, as well as the movable arm and the rocker arm, are arranged mirror images of each other on both sides of the window. The inner lens extends in an arc shape, with its two ends connected to the movable arm and the rocker arm, respectively.

10. A helmet, characterized in that, The helmet includes a helmet body and a helmet inner lens linkage structure as described in any one of claims 1-9, wherein the helmet body is connected to the base and the switching mechanism respectively, and the switching mechanism is located below the movable mechanism.

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