Eye protection and helmets

Abstract

The present invention provides an eye protection mechanism and a helmet, relating to the technical field of safety products. In the eye protection mechanism, the eye protection lens is provided with a buckle, the cover plate is provided as an open shell, the side wall of the cover plate is provided with an avoidance groove, the cover plate is rotatably connected to the base, and the opening is provided toward the base; a locking post is provided on the rotating handle, the rotating assembly is provided at the open end of the cover plate and is in transmission cooperation with the cover plate, and the locking post is slidably provided in the locking groove or the unlocking groove; a clamping member is connected to an elastic member, the elastic member is limitedly connected to the rotating assembly and is located between the rotating assembly and the cover plate, and the clamping member can extend or retract into the cover plate through the avoidance groove; when the locking post is located in the locking groove, the clamping member extends from the cover plate and engages with the buckle; when the rotating handle is turned so that the locking post is located in the unlocking groove, the clamping member disengages from the buckle and retracts into the cover plate. The eye protection mechanism facilitates the removal of the eye protection lens, and the removal process is simple and easy to operate, making it convenient for replacing or maintaining the eye protection lens.

Description

Technical Field

[0001] The present invention relates to the technical field of safety products, in particular to an eye protection mechanism and a helmet. Background Art

[0002] A helmet is a protective device used to protect the head. It is used as a protective tool in transportation such as bicycles or motorcycles, and is especially suitable for motorcycle riding. It is usually designed with goggles. As an optical device, goggles not only improve vision and protect the eyes, but also have an aesthetic effect. The goggles are usually installed on the helmet with the help of a mounting structure. During actual use, the area where the goggles can perform their functions can be adjusted, so that the area where the goggles can perform their functions remains in a specific position. When the goggles need to be replaced or maintained, some existing helmets use a handle-type mounting structure. This structure makes it difficult to detach the goggles during disassembly, making it more difficult to replace or maintain the goggles. Another type of helmet uses a snap-on structure. Although the snap-on structure makes it easier to detach the goggles during disassembly, because the snap-on structure is located between the goggles and the helmet, the disassembly operation is more troublesome due to the interference between the goggles and the helmet. Summary of the Invention

[0003] The purpose of the present invention is to provide an eye protection mechanism and a helmet, wherein the eye protection mechanism is convenient for disassembling the eye protection lenses, and the disassembly process is simple and easy to operate, thereby facilitating the replacement or maintenance of the eye protection lenses.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Eye protection mechanisms, including:

[0006] Goggles, provided with buckles;

[0007] A base, wherein a locking groove and an unlocking groove are provided on the base, and the locking groove and the unlocking groove are communicated with each other;

[0008] The cover plate is provided as an open shell, the side wall of the cover plate is provided with an avoidance groove, the cover plate is rotatably connected to the base, and the opening of the cover plate is provided toward the base;

[0009] A rotating assembly, comprising a rotating handle, wherein the rotating handle is provided with a locking post, the rotating assembly is movably provided at the open end of the cover plate and is in driving engagement with the cover plate, the locking post is slidably provided in the locking groove or the unlocking groove, and the rotation center of the cover plate is offset from the center line of the rotating assembly;

[0010] A clamping assembly, comprising an elastic member and a clamping member, wherein the clamping member is connected to the elastic member, the elastic member is positionally connected to the rotating assembly and is located between the rotating assembly and the cover plate, and the clamping member can extend or retract from the cover plate through the avoidance groove;

[0011] When the locking post is located in the locking groove, the clamping member extends out of the cover plate and engages with the buckle. When the rotating handle is turned to make the locking post located in the unlocking groove, the clamping member disengages from the buckle and retracts into the cover plate.

[0012] As a further technical solution, a buffer groove is further provided on the base, and the locking groove and the unlocking groove are respectively located on both sides of the buffer groove and are both communicated with the buffer groove.

[0013] As a further technical solution, a plurality of positioning grooves are provided on the left side wall of the base, and the plurality of positioning grooves are arranged at intervals along the extension direction of the left side wall. A positioning column is provided on the goggle lens, and the positioning column is engaged with the positioning groove.

[0014] As a further technical solution, the cover plate is provided with a rotating column and an auxiliary member;

[0015] The rotating column is arranged on one side of the cover plate and is rotatably connected to the rotating slot in the base, and the rotating slot is arranged on the upper side of the unlocking slot;

[0016] The auxiliary component is arranged at the open end of the cover plate, and the auxiliary component is slidably matched with the guide limit groove in the base and is transmission-matched with the rotating assembly.

[0017] As a further technical solution, there are two clamping members, and correspondingly, there are two avoidance grooves. The two clamping members are spaced apart in the left-right direction, and the elastic member is arranged between the two clamping members.

[0018] As a further technical solution, the elastic member is configured as a plate, and two limit groove groups are provided on the elastic member. A guide protrusion is formed at the connection between the clamping member and the elastic member, and the two limit groove groups are spaced apart in the left-right direction.

[0019] The two limit groove groups are both arranged on the end face of the elastic member close to the rotating assembly, and are limitedly matched with the corresponding limit pins on the rotating assembly to change the position of the limit pins in the limit groove group so that the elastic member is in a compressed or retracted state, and the guide protrusion is guided and matched with the corresponding first guide groove on the cover plate.

[0020] As a further technical solution, the rotating assembly further includes a rotating switch, the limiting pin is provided on the end surface of the rotating switch close to the elastic member, and the rotating switch is connected to the rotating handle.

[0021] As a further technical solution, the rotary switch is further provided with an abutment member, and the eye protection mechanism further includes a first reset member and a second reset member;

[0022] The abutment member extends in a direction close to the cover plate and abuts against the auxiliary member, and the rotating handle is rotated to drive the cover plate to rotate;

[0023] The first restoring member is arranged between the auxiliary member and the base, and the second restoring member is arranged between the abutting member and the cover plate.

[0024] As a further technical solution, the end surface of the abutment member close to the cover plate is set as a first guide surface, and the goggles are provided with a second guide surface that cooperates with the first guide surface for guidance.

[0025] The helmet comprises a helmet body and an eye protection mechanism, wherein the end surface of the base of the eye protection mechanism facing away from the eye protection lens is connected to the helmet body.

[0026] Compared with the prior art, the eye protection mechanism and helmet provided by the present invention have the following technical advantages:

[0027] 1. A snap-fit ​​assembly capable of snapping into the unlocking slot is provided, the snap-fit ​​assembly is provided between the rotating assembly and the cover plate, and is limitedly connected to the rotating assembly; the rotating assembly is movably provided on the cover plate and is in transmission cooperation with the cover plate, and the rotation center of the cover plate is offset from the center line of the snap-fit ​​assembly. Therefore, when the goggles need to be removed, the rotating handle is turned to slide the locking post in the locking slot toward the unlocking slot; at this time, the rotating assembly rotates in a first direction around its own center line, and drives the cover plate to rotate in the first direction around its rotation center; in this process, since the rotating assembly and the cover plate rotate simultaneously but at different rotation centers, the elastic member in the snap-fit ​​assembly is compressed by the rotating assembly and the cover plate, and the snap-fit ​​member connected to the elastic member is disengaged from the buckle and retracted into the cover plate, so that the goggles are disengaged from the snap-fit ​​assembly, thereby realizing the removal of the goggles, thereby facilitating the subsequent maintenance or replacement of the goggles. When the goggles need to be installed, the buckle on the goggles is placed on the base, and then the rotating handle is turned to make the locking column in the unlocking groove slide towards the locking groove; at this time, the rotating assembly rotates around its own center line in a second direction opposite to the first direction, and drives the cover plate to rotate around its rotation center in the second direction opposite to the first direction; in this process, the rotating assembly and the cover plate gradually release the compression of the elastic member in the clamping assembly, and the elastic member rebounds on its own, so that the clamping member connected to the elastic member extends out of the cover plate, and at the same time presses the goggles to make the buckle and the clamping member engage, so as to achieve the installation of the goggles. During the whole process, the goggles can be disassembled by simply turning the rotating handle. The disassembly process is simple and easy to operate, which facilitates the replacement or maintenance of the goggles; at the same time, with the help of the rotating handle, the difficulty of disassembly and assembly caused by interference with the goggles or helmet can be avoided during the disassembly and assembly process.

[0028] 2. Since the eye protection mechanism is installed on the helmet, when removing the goggles, the clamping parts and the buckles can be engaged or disengaged by turning the handle, thereby completing the installation or removal of the goggles. The whole process is simple and easy to operate. At the same time, it can avoid the difficulty of disassembly and assembly due to interference with the goggles or the helmet, further improving the convenience of replacing or maintaining the goggles. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a partial structural diagram of the eye protection mechanism provided by an embodiment of the present invention in the unlocked state. Figure 1 ;

[0030] Figure 2 This is a partial structural diagram of the eye protection mechanism provided by an embodiment of the present invention in the unlocked state. Figure 2 ;

[0031] Figure 3 This is a partial structural diagram of the eye protection mechanism provided by an embodiment of the present invention. Figure 3 ;

[0032] Figure 4 1 is a schematic structural diagram of a base in an eye protection mechanism provided by an embodiment of the present invention;

[0033] Figure 5 1 is a schematic structural diagram of a clamping assembly in an eye protection mechanism provided by an embodiment of the present invention;

[0034] Figure 6 1 is a schematic structural diagram of a rotary switch in an eye protection mechanism provided by an embodiment of the present invention;

[0035] Figure 7 Schematic diagram of the structure of goggles in the eye protection mechanism provided by an embodiment of the present invention.

[0036] In the picture:

[0037] 100, goggle lens; 110, buckle; 120, positioning column; 130, second guide surface;

[0038] 200, base; 210, locking slot; 220, unlocking slot; 230, buffer slot; 240, positioning slot; 250, rotation slot; 260, guide limit slot; 270, second guide slot;

[0039] 300, cover plate; 310, avoidance groove; 320, rotating part; 330, auxiliary part;

[0040] 400, rotating assembly; 410, rotating handle; 411, locking column; 420, rotating switch; 421, limiting pin; 422, abutting member; 4221, first guide surface;

[0041] 500, snap-fit ​​assembly; 510, elastic member; 5121, first limiting guide groove; 5122, second limiting guide groove; 5123, third limiting guide groove; 5124, fourth limiting guide groove; 5125, first limiting section; 5126, second limiting section; 513, elastic portion; 514, connecting portion; 520, snap-fit ​​member;

[0042] 600, first reset member;

[0043] 700. Second reset member. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0045] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0048] Combine Figures 1 to 7 As shown, the eye protection mechanism provided in this embodiment can improve the convenience of installing and removing the goggles 100. The goggles 100 are mounted on the helmet via two sets of bases 200 and other components connected to the bases 200. In this embodiment, the structure on the left side of the helmet is used as an example. Specifically, the helmet includes a helmet body and an eye protection mechanism. The end face of the base 200 in the eye protection mechanism facing away from the goggles 100 is connected to the helmet body. Since the eye protection mechanism is mounted on the helmet, when removing the goggles, the clamping member 520 can be engaged or disengaged with the buckle 110 by turning the handle 410, thereby completing the installation or removal of the goggles 100. The entire process is simple and easy to operate, and it also avoids the difficulty of installation and removal due to interference with the goggles 100 or the helmet, further improving the convenience of replacing or maintaining the goggles 100.

[0049] The eye protection mechanism includes a goggle lens 100, a base 200, a cover plate 300, a rotating assembly 400 and a snap assembly 500. The goggle lens 100 is provided with a buckle 110; the base 200 is provided with a locking groove 210 and an unlocking groove 220, and the locking groove 210 and the unlocking groove 220 are connected; the cover plate 300 is configured as an open shell, and the side wall of the cover plate 300 is provided with an avoidance groove 310. The cover plate 300 is rotatably connected to the base 200, and the opening of the cover plate 300 is arranged toward the base 200; the rotating assembly 400 includes a rotating handle 410, and the rotating handle 410 is provided with a locking column 411. The rotating assembly 400 is movably arranged on the cover plate 30 0, and is in transmission cooperation with the cover plate 300, the locking column 411 is slidably set in the locking groove 210 or the unlocking groove 220, and the rotation center of the cover plate 300 is staggered with the center line of the rotating assembly 400; the clamping assembly 500 includes an elastic member 510 and a clamping member 520, the clamping member 520 is connected to the elastic member 510, the elastic member 510 is limitedly connected to the rotating assembly 400, and is located between the rotating assembly 400 and the cover plate 300, and the clamping member 520 can extend or retract from the cover plate 300 through the avoidance groove 310.

[0050] When the locking column 411 is located in the locking groove 210, the clamping member 520 extends out of the cover 300 and is clamped with the buckle 110. When the handle 410 is turned to make the locking column 411 located in the unlocking groove 220, the clamping member 520 disengages from the buckle 110 and retracts into the cover 300.

[0051] Since a snap-fit ​​assembly 500 that can snap into the unlocking groove 220 is provided, the snap-fit ​​assembly 500 is arranged between the rotating assembly 400 and the cover plate 300, and is limitedly connected to the rotating assembly 400; and the rotating assembly 400 is movably arranged on the cover plate 300, and is transmission-coordinated with the cover plate 300, and the rotation center of the cover plate 300 is staggered with the center line of the rotating assembly 400. Therefore, when the goggle lens 100 needs to be removed, the rotating handle 410 is bent to make the locking column 411 in the locking groove 210 slide toward the unlocking groove 220; at this time, the rotating component 400 rotates around its own center line in the first direction, and drives the cover plate 300 to rotate around its rotation center in the first direction; in this process, since the rotating component 400 and the cover plate 300 rotate at the same time and the rotation centers are different, the elastic member 510 in the snap assembly 500 is compressed by the rotating component 400 and the cover plate 300, and the snap member 520 connected to the elastic member 510 is disengaged from the buckle 110 and retracted into the cover plate 300, so that the goggle lens 100 is disengaged from the snap assembly 500, so as to realize the disassembly of the goggle lens 100, thereby facilitating the subsequent maintenance or replacement of the goggle lens 100. When the goggles 100 need to be installed, the buckle 110 on the goggles 100 is placed on the base 200, and then the rotating handle 410 is bent to make the locking column 411 in the unlocking groove 220 slide towards the locking groove 210; at this time, the rotating assembly 400 rotates around its own center line in a second direction opposite to the first direction, and drives the cover 300 to rotate around its rotation center in the second direction opposite to the first direction; in this process, the rotating assembly 400 and the cover 300 gradually release the compression of the elastic member 510 in the clamping assembly 500, and the elastic member 510 rebounds on its own, so that the clamping member 520 connected to the elastic member 510 extends out of the cover 300, and at the same time presses the goggles 100 to make the buckle 110 engage with the clamping member 520, so that the installation of the goggles 100 is achieved. Throughout the entire process, the goggle lens 100 can be disassembled by simply turning the handle 410. This simple and easy disassembly process facilitates the replacement or maintenance of the goggle lens 100. Furthermore, by turning the handle 410, difficulties in assembly and disassembly due to interference with the goggle lens 100 or the helmet can be avoided. Furthermore, in this embodiment, to further enhance the connection strength and ease of disassembly of the goggle lens 100, a mounting ring is provided on the goggle lens 100, and the buckle 110 is disposed on the mounting ring.

[0052] Preferably, the base 200 is further provided with a buffer groove 230, and the locking groove 210 and the unlocking groove 220 are respectively located on either side of the buffer groove 230 and are both connected to the buffer groove 230. When the rotating handle 410 is bent and the locking post 411 is located in the buffer groove 230, the connection strength between the clip 520 and the buckle 110 is weakened, but it does not completely disengage. Therefore, the provision of a groove buffer between the locking groove 210 and the unlocking groove 220 can prevent the locking post 411 from sliding directly from the locking groove 210 to the unlocking groove 220 due to accidental touching of the rotating handle 410, thereby improving the safety of the helmet. In addition, to ensure the effectiveness of the buffer groove 230, the buffer groove 230 is located below the locking groove 210 and the unlocking groove 220.

[0053] Preferably, a plurality of positioning slots 240 are provided on the left side wall of the base 200, and the plurality of positioning slots 240 are spaced apart along the extension direction of the left side wall. The goggle lens 100 is provided with a positioning post 120, which engages with the positioning slots 240. The side walls of adjacent positioning slots 240 are smoothly connected. By engaging the positioning post 120 with the positioning slots 240 at different positions, the goggle lens 100 can be held in the corresponding position, thereby preventing the goggle lens 100 from suddenly falling due to bumps during use, thereby further improving the safety of the helmet.

[0054] Preferably, a rotating column and an auxiliary part 330 are provided on the cover plate 300; the rotating column is provided on one side of the cover plate 300 and is rotatably connected to the rotating groove 250 in the base 200, and the rotating groove 250 is provided on the upper side of the unlocking groove 220; the auxiliary part 330 is provided at the open end of the cover plate 300, and the auxiliary part 330 is slidably matched with the guide limit groove 260 in the base 200, and is transmission-matched with the rotating assembly 400.

[0055] In this embodiment, the cross-section of the cover plate 300 is set to be circular, and a rotating part 320 is set on one side of the cover plate 300. The rotating column is set on the rotating part 320, and the rotating column extends in the direction close to the opening end of the cover plate 300; the rotating groove 250 is set to the upper right of the unlocking groove 220. When the rotating component 400 rotates around its own center line in the first direction and drives the cover plate 300 to rotate around its rotating column in the first direction, the compression effect on the elastic part 510 is guaranteed to avoid interference between the rotating component 400 and the cover plate 300, and at the same time ensure that the rotating column of the cover plate 300 and the center line of the rotating component 400 are staggered. The guide groove 260 is configured as an arc-shaped groove centered on the rotation column. When the rotating handle 410 is actuated to rotate the cover plate 300, the auxiliary member 330 cooperates with the guide groove 260 to ensure that the cover plate 300 always rotates in the direction in which the guide groove 260 extends. When the cover plate 300 returns to its original position, the auxiliary member 330 abuts against a portion of the guide groove 260 near the rotation column, preventing the cover plate 300 from excessively rotating in the second direction and affecting the overall performance. Furthermore, the base 200 is provided with a second guide groove 270, which is disposed opposite the guide groove 260 and extends toward the guide groove 260. A corresponding guide connector (not shown) is provided on the cover plate 300, which slides in a guiding manner with the second guide groove 270 to ensure a stable and effective rotation of the cover plate 300 when the rotating handle 410 is actuated to rotate the cover plate 300.

[0056] Preferably, two clamping members 520 are provided, and correspondingly, two avoidance grooves 310 are provided. The two clamping members 520 are spaced apart in the left-right direction, and the elastic member 510 is provided between the two clamping members 520 .

[0057] Specific combination Figures 2 to 5 As shown, the two avoidance grooves 310 are arranged at relative intervals along the left and right directions, and two buckles 110 are provided on the corresponding goggle lenses 100. When the locking column 411 is located in the locking groove 210, the two clips 520 extend out of the cover plate 300 through the corresponding avoidance grooves 310 and are engaged with the corresponding buckles 110 to improve the connection strength and installation stability of the goggle lenses 100.

[0058] Preferably, the elastic member 510 is configured to be plate-shaped, and two limit groove groups are provided on the elastic member 510. A guide protrusion is formed at the connection between the clamping member 520 and the elastic member 510, and the two limit groove groups are spaced apart along the left and right directions; the two limit groove groups are both provided on the end face of the elastic member 510 close to the rotating assembly 400, and are limitedly matched with the corresponding limit pin 421 on the rotating assembly 400, and the position of the limit pin 421 in the limit groove group is changed to make the elastic member 510 in a compressed or retracted state, and the guide protrusion is guided and matched with the corresponding first guide groove on the cover plate 300.

[0059] Specific combination Figure 5 As shown, in this embodiment, the elastic member 510 is configured in a plate shape with a ring-shaped cross-section. Specifically, it includes two elastic portions 513 and two connecting portions 514. The two elastic portions 513 are spaced apart in the vertical direction, and the two connecting portions 514 are spaced apart in the horizontal direction between the two elastic portions 513. Two clamping members 520 are disposed one-to-one on the sides of the two connecting portions 514 facing away from each other. The connection between the clamping members 520 and the corresponding clamping members 520 forms a guide protrusion, which is guided and engaged with the corresponding first guide groove. The elastic portion 513 is configured to compress the elastic portion 513. A limiting groove group is provided on the end surface of the connecting portion 514 near the rotating assembly 400. The limiting groove groups on the two connecting portions 514 are symmetrical about the midpoint of the elastic member 510.

[0060] Take the limiting groove group provided on the right connecting portion 514 as an example. The specific structure of the limiting groove group is as follows: a first limiting guide groove 5121, a second limiting guide groove 5122, a third limiting guide groove 5123 and a fourth limiting guide groove 5124 are provided in sequence from top to bottom, and the notches of each limiting guide groove are all set to the right; the depth of the first limiting guide groove 5121 is less than the depth of the second limiting guide groove 5122, and a first limiting section 5125 is provided on the side wall of the second limiting guide groove 5122 away from the first limiting guide groove 5121, and the first limiting section 5125 is provided on the side wall of the second limiting guide groove 5122 away from the first limiting guide groove 5121. The limiting section 5125 is positioned near the notch of the second limiting guide groove 5122. The second limiting guide groove 5122 has a greater depth than the third limiting guide groove 5123, which is less than the fourth limiting guide groove 5124. A second limiting section 5126 is positioned on the sidewall of the fourth limiting guide groove 5124 facing away from the third limiting guide groove 5123, and the second limiting section 5126 is positioned near the notch of the fourth limiting guide groove 5124. Two limiting pins 421 are provided on the right side of the limiting groove group corresponding to the rotating assembly 400. The sides of both limiting pins 421, which are located near the center of the rotating assembly 400, are configured as guide slides. These guide slides are configured as curved surfaces to enhance the convenience and tightness of the limiting pins 421 when mating with the limiting groove group. The sides facing away from the center of the rotating assembly 400 are configured as limiting abutment portions. When the locking column 411 is located in the unlocking groove 220, the two limit pins 421 are respectively limited and cooperated with the first limit guide groove 5121 and the third limit guide groove 5123. Since the first limit guide groove 5121 and the third limit guide groove 5123 are relatively small, the pressure on the elastic member 510 increases, thereby compressing the back of the elastic part 513 and driving the connecting part 514 and the snap member 520 to retract, thereby realizing the separation of the snap member 520 from the buckle 110, thereby completing the disassembly of the goggle lens 100. When the locking column 411 is located in the locking groove 210, the two limiting pins 421 are respectively limited and cooperated with the second limiting guide groove 5122 and the fourth limiting guide groove 5124. Since the second limiting guide groove 5122 and the fourth limiting guide groove 5124 are deeper, the pressure on the elastic member 510 can be released, and the elastic portion 513 rebounds automatically after no longer being subjected to force, thereby driving the two connecting portions 514 to move away from each other, so that the clamping member 520 extends from the corresponding avoidance groove 310 and is clamped with the corresponding buckle 110 to complete the installation of the goggles 100; and the limiting abutting portions of the two limiting pins 421 are respectively abutted with the first limiting section 5125 and the second limiting section 5126, thereby avoiding the situation where the elastic member 510 and the rotating assembly 400 are separated from each other due to the large rotation range of the rotating assembly 400. During the entire process, the guide protrusion cooperates with the corresponding first guide groove to limit the relative position of the snap-on assembly 500 in the cover 300. At the same time, it ensures that as the cover 300 and the rotating assembly 400 rotate, the elastic member 510 is compressed or rebounds autonomously, thereby ensuring the overall use effect of the eye protection mechanism.

[0061] Preferably, the rotating assembly 400 further includes a rotating switch 420. A limit pin 421 is provided on the end surface of the rotating switch 420 near the elastic member 510. The rotating switch 420 is connected to the rotating handle 410. By turning the rotating handle 410, the rotating switch 420 is activated. At the same time, since the rotating switch 420 and the rotating handle 410 are provided separately, the difficulty of assembling the eye protection mechanism can be reduced.

[0062] Preferably, the rotary switch 420 is further provided with an abutment member 422. The abutment member 422 is disposed on the upper side of the rotary switch 420 opposite to the rotary handle 410 and extends toward the cover plate 300. The abutment member 422 abuts against the auxiliary member 330 to ensure a transmission effect with the cover plate 300. Specifically, when the rotary handle 410 is bent from the locking slot 210 to the unlocking slot 220, the rotary switch 420 rotates in a first direction, and the abutment member 422 abuts against the auxiliary member 330, driving the cover plate 300 to rotate about the rotating column in the first direction, thereby ensuring a compression effect on the elastic member 510 and ensuring smooth retraction of the clamping member 520.

[0063] After the goggles 100 are removed, to ensure that the cover plate 300 and the rotary switch 420 can return to their original positions for the next installation of the goggles 100, the eye protection mechanism also includes a first reset member 600 and a second reset member 700. Specifically, the first reset member 600 is disposed between the auxiliary member 330 and the base 200. The first reset member 600 is configured as a compression spring. When the rotary switch 420 and the cover plate 300 cooperate to compress the elastic member 510, the first reset member 600 is simultaneously compressed. When the rotary switch 420 and the cover plate 300 release the compression on the first reset member 600, the first reset member 600 rebounds on its own, thereby pushing the auxiliary member 330 to rotate around the rotating column in the second direction, thereby restoring the cover plate 300 to its original position. The second reset member 700 is disposed between the abutment member 422 and the cover plate 300. The second restoring member 700 is configured as a tension spring. When the rotary switch 420 cooperates with the cover plate 300 to compress the elastic member 510, the second restoring member 700 is synchronously stretched. When the rotary switch 420 and the cover plate 300 release the stretching of the first restoring member 600, the second restoring member 700 retracts autonomously. During the process of the cover plate 300 returning to its original position, the second restoring member 700 is driven to rotate in the second direction, so that the rotary switch 420 and the cover plate 300 return to their original positions at the same time.

[0064] Preferably, the end surface of the abutting member 422 close to the cover plate 300 is set as a first guide surface 4221 , and the goggle lens 100 is provided with a second guide surface 130 that cooperates with the first guide surface 4221 for guidance.

[0065] Combine Figure 2 and Figure 7As shown, the end surface of the mounting ring facing away from the goggle lens 100 is provided with an avoidance surface and abutment surface, and the second guide surface 130 is provided between the avoidance surface and the abutment surface. When the goggle lens 100 is mounted on the helmet, the abutment member 422 is arranged opposite to the avoidance surface; along the first direction, the first guide surface 4221 guides the direction close to the rotation switch 420 and tilts, and the second guide surface 130 guides the direction away from the rotation switch 420 and tilts; when the rotating handle 410 is turned to rotate the rotation switch 420 around its own center line along the first direction, the first guide surface 4221 and the second guide surface 130 guide and cooperate, and when the locking column 411 is located after the unlocking groove 220, the clamping member 520 is disengaged from the buckle 110; at the same time, the abutment member 422 abuts against the abutment surface, and the abutment member 422 pushes out the goggle lens 100, further improving the convenience when disassembling the goggle lens 100.

[0066] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Eye protection mechanism, characterized in that: include: A goggle lens (100) is provided with a buckle (110); A base (200), wherein a locking groove (210) and an unlocking groove (220) are provided on the base (200), and the locking groove (210) and the unlocking groove (220) are communicated with each other; The cover plate (300) is provided as an open shell, a side wall of the cover plate (300) is provided with an avoidance groove (310), the cover plate (300) is rotatably connected to the base (200), and the opening of the cover plate (300) is provided toward the base (200); A rotating assembly (400) includes a rotating handle (410), a locking column (411) is provided on the rotating handle (410), the rotating assembly (400) is arranged at the open end of the cover plate (300), and is in transmission cooperation with the cover plate (300), the locking column (411) is slidably arranged in the locking groove (210) or the unlocking groove (220), and the rotation center of the cover plate (300) is offset from the center line of the rotating assembly (400); A clamping assembly (500) comprises an elastic member (510) and a clamping member (520), wherein the clamping member (520) is connected to the elastic member (510), the elastic member (510) is positionally connected to the rotating assembly (400) and is located between the rotating assembly (400) and the cover plate (300), and the clamping member (520) can extend from or retract into the cover plate (300) through the avoidance groove (310); When the locking column (411) is located in the locking groove (210), the clamping member (520) extends out of the cover plate (300) and is clamped with the buckle (110); when the rotating handle (410) is turned to make the locking column (411) located in the unlocking groove (220), the clamping member (520) is disengaged from the buckle (110) and retracted into the cover plate (300).

2. The eye protection mechanism according to claim 1, characterized in that: A buffer groove (230) is also provided on the base (200), and the locking groove (210) and the unlocking groove (220) are respectively located on both sides of the buffer groove (230) and are both communicated with the buffer groove (230).

3. The eye protection mechanism according to claim 1, characterized in that: A plurality of positioning grooves (240) are provided on the left side wall of the base (200), and the plurality of positioning grooves (240) are arranged at intervals along the extension direction of the left side wall. A positioning column (120) is provided on the goggle lens (100), and the positioning column (120) is engaged with the positioning groove (240).

4. The eye protection mechanism according to claim 1, characterized in that: The cover plate (300) is provided with a rotating column and an auxiliary component (330); The rotating column is arranged on one side of the cover plate (300) and is rotatably connected to the rotating groove (250) in the base (200), and the rotating groove (250) is arranged on the upper side of the unlocking groove (220); The auxiliary component (330) is arranged at the open end of the cover plate (300), and the auxiliary component (330) is slidably matched with the guide limit groove (260) in the base (200) and is transmission-matched with the rotating assembly (400).

5. The eye protection mechanism according to claim 4, characterized in that: There are two clamping members (520), and correspondingly, there are two avoidance grooves (310). The two clamping members (520) are spaced apart in the left-right direction, and the elastic member (510) is disposed between the two clamping members (520).

6. The eye protection mechanism according to claim 5, characterized in that: The elastic member (510) is configured in a plate shape, and two limiting groove groups are provided on the elastic member (510). A guide protrusion is formed at the connection between the clamping member (520) and the elastic member (510), and the two limiting groove groups are spaced apart in the left-right direction. The two limiting groove groups are both arranged on the end surface of the elastic member (510) close to the rotating assembly (400), and are limitedly matched with the corresponding limiting pin (421) on the rotating assembly (400), and the position of the limiting pin (421) in the limiting groove group is changed to put the elastic member (510) in a compressed or retracted state, and the guide protrusion is guided and matched with the corresponding first guide groove on the cover plate (300).

7. The eye protection mechanism according to claim 6, characterized in that: The rotating assembly (400) further comprises a rotating switch (420), the limiting pin (421) is arranged on the end surface of the rotating switch (420) close to the elastic member (510), and the rotating switch (420) is connected to the rotating handle (410).

8. The eye protection mechanism according to claim 7, characterized in that: The rotary switch (420) is further provided with an abutment member (422), and the eye protection mechanism further comprises a first reset member (600) and a second reset member (700); The abutment member (422) extends in a direction close to the cover plate (300) and abuts against the auxiliary member (330), and the rotating handle (410) is rotated to drive the cover plate (300) to rotate; The first restoring member (600) is arranged between the auxiliary member (330) and the base (200), and the second restoring member (700) is arranged between the abutting member (422) and the cover plate (300).

9. The eye protection mechanism according to claim 8, characterized in that: The end surface of the abutment member (422) close to the cover plate (300) is provided as a first guide surface (4221), and the goggle lens (100) is provided with a second guide surface (130) that cooperates with the first guide surface (4221) in a guiding manner.

10. A helmet, characterized in that The invention comprises a helmet body and the eye protection mechanism according to any one of claims 1 to 9, wherein the base (200) in the eye protection mechanism is connected to the helmet body at the end face facing away from the eye protection lens (100).

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