Helmet

Abstract

The utility model discloses a helmet. The helmet comprises a helmet body, the lens support is provided with a pair of goggles and is rotationally connected with the helmet body, the lens support is provided with an arc-shaped boss, and the jaw shield assembly is rotationally connected with the helmet body and is provided with an arc-shaped protrusion; in the first state, the goggles and the jaw shield assembly are located at the lowest position, the arc-shaped boss is located below the arc-shaped protrusion, the arc-shaped boss abuts against the arc-shaped protrusion when the jaw shield assembly is lifted, and when the arc-shaped boss moves to the outer side of the arc-shaped protrusion, the arc-shaped protrusion slides relative to the arc-shaped boss, so that the jaw shield assembly can continue to be lifted; in the second state, the goggles are located at the lowest position, the chin shield assembly is located at the final position, the arc-shaped boss abuts against the arc-shaped protrusion, the chin shield assembly is put down, the arc-shaped protrusion abuts against the arc-shaped boss to move, the goggles move to the highest position, and the chin shield assembly continues to rotate to the bottom. And the multi-aspect requirements of the user cannot be met.

Description

Technical Field

[0001] The utility model relates to the technical field of personal protective equipment, and particularly relates to a helmet. Background Art

[0002] Helmets play a crucial protective role during people's cycling. However, on the premise of fulfilling the protective function, they should meet the wearing needs of different users. Currently, there are mainly two types of helmets on the market. One is a full-face helmet, where the helmet shell and the chin guard are fixed as a whole, and the chin guard cannot move. The other is a half-face helmet, which only has the helmet shell without a chin guard. But during people's use, different types of helmets need to be adopted for different application scenarios, and the current helmets are difficult to take into account people's diverse needs.

[0003] In summary, it is an urgent problem for those skilled in the art to design a helmet with an openable and closable chin guard to achieve the integration of a half-face helmet and a full-face helmet. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a helmet that can disassemble and install the chin guard, integrating a half-face helmet and a full-face helmet, and solving the technical problem of single application scenarios of helmets.

[0005] To achieve the above purpose, the utility model provides a helmet including:

[0006] A helmet body;

[0007] A lens bracket with a goggle, rotatably arranged on the helmet body, and the lens bracket is provided with an arc-shaped boss;

[0008] A chin guard assembly, rotatably arranged on the helmet body, provided with an arc-shaped protrusion facing the arc-shaped boss. The rotation center of the lens bracket is farther from the goggle than the rotation center of the chin guard assembly, and there is a height difference between the two rotation centers in the height direction of the goggle. The length of the arc-shaped protrusion is greater than the length of the arc-shaped boss;

[0009] In the first state, both the goggle and the chin guard assembly are in the lowest position, and the arc-shaped boss is located below the arc-shaped protrusion. By lifting the chin guard assembly, the chin guard assembly drives the goggle to move synchronously. When the arc-shaped boss and the arc-shaped protrusion abut against each other, the arc-shaped protrusion holds the arc-shaped boss to move until the arc-shaped boss moves to the outside of the arc-shaped protrusion, the goggle moves to the highest position, and the arc-shaped protrusion slides relative to the arc-shaped boss, enabling the chin guard assembly to continue to lift relative to the goggle;

[0010] In the second state, the goggles are in the lowest position and the chin guard assembly is in the rearmost position. The arc-shaped boss and the arc-shaped protrusion are in contact with each other. The arc-shaped protrusion is farther from the rotation center of the lens bracket than the arc-shaped boss. By lowering the chin guard assembly, the arc-shaped protrusion moves against the arc-shaped boss, causing the goggles to move to the highest position. The arc-shaped boss moves to the outside of the arc-shaped protrusion, and the arc-shaped protrusion slides relative to the arc-shaped boss, causing the chin guard assembly to continue to move downward relative to the goggles.

[0011] Preferably, a pointed end is provided at the first end of the arc-shaped protrusion. The pointed end is located on the inner edge of the arc-shaped protrusion. In the first state, the pointed end faces the arc-shaped boss. When the pointed end and the arc-shaped protrusion are in contact, as the arc-shaped protrusion rotates, the pointed end guides the arc-shaped boss to the outer edge of the arc-shaped protrusion.

[0012] Preferably, a supporting end is provided at the second end of the arc-shaped protrusion. In the second state, the center of the arc corresponding to the arc-shaped boss is located on the side close to the arc-shaped protrusion. The supporting end is in contact with one side of the arc-shaped protrusion. By lowering the chin guard assembly, the supporting end pushes up the arc-shaped protrusion, causing the goggles to move to the highest position.

[0013] Preferably, a rotating gear seat is fixed to the helmet body. The rotating gear seat is provided with a first sliding groove and a second sliding groove. The first sliding groove and the second sliding groove are respectively arranged at different positions in the thickness direction of the rotating gear seat. The lens bracket is slidably connected to the first sliding groove, and the chin guard assembly is slidably connected to the second sliding groove. Clamping ends for locking the position of the lens bracket are provided at both ends of the first sliding groove.

[0014] Preferably, the chin guard assembly includes a rotating disk and a chin guard body fixedly connected. The rotating disk is provided with an arc-shaped protrusion, and the chin guard body is located outside the helmet body.

[0015] Preferably, fixing holes are provided on the chin guard body. Specifically, there are three fixing holes. The fixing holes are distributed in a triangle with the same spacing. Fixing members are provided in each fixing hole to fixedly connect the chin guard body and the rotating disk. And the chin guard body is provided with a sealing plate for covering each fixing member.

[0016] Preferably, the rotating gear seat is provided with a limiting groove. A limiting member is provided at one end of the limiting groove. The limiting groove is located between the first sliding groove and the second sliding groove. A fixing groove is provided on the outer edge of the rotating disk. When the chin guard assembly moves to the rearmost position, the fixing groove is clamped with the limiting member to lock the position of the chin guard assembly.

[0017] Preferably, a fixing seat is clamped to the helmet body. The fixing seat encloses the lens bracket and the rotating gear on the helmet body. A rotating disk is also rotatably connected to the fixing seat, so that the arc-shaped protrusion on one side of the rotating disk extends in and abuts against the arc-shaped boss of the lens bracket.

[0018] Preferably, a clamping groove is provided at one end of the lens bracket away from the rotating disc. A first elastic member is provided in the clamping groove. One side of the first elastic member abuts against the clamping groove, and the other side is connected to the clamping member. After the goggles are inserted into the clamping groove, the first elastic member applies an elastic force to the clamping member to fix the goggles.

[0019] Preferably, the chin guard body supports the goggles. When the chin guard body rotates upward, it can push the goggles to move synchronously.

[0020] Compared with the above background art, the helmet provided by the present invention includes: a helmet body, a chin guard assembly, and a lens bracket provided with goggles. The chin guard assembly can rotate relative to the helmet body, and the opening and closing movement of the chin guard assembly drives the goggles to move synchronously. The lens bracket is used to carry the goggles. One end of the goggles is also connected to the helmet body. The lens bracket can rotate around the connection point with the helmet body relative to the helmet body. An arc-shaped convex platform is also provided on the lens bracket for driving the entire lens bracket to rotate. The chin guard assembly is provided with an arc-shaped protrusion. That is to say, the arc-shaped protrusion of the chin guard assembly can extend into the helmet body and abut against the arc-shaped convex platform on the lens bracket. When the arc-shaped protrusion rotates, it can push the arc-shaped convex platform to move synchronously.

[0021] During the process of the helmet being converted from the closed state to the open state, at this time, both the goggles and the lower chin guard assembly are in the lowest position. The user pushes the chin guard assembly upward, and the arc-shaped protrusion inside the chin guard assembly rotates. The lens bracket is connected to the helmet body and can rotate relative to the helmet body. Also, because the arc-shaped protrusion of the chin guard assembly abuts against the arc-shaped convex platform of the lens bracket, the arc-shaped protrusion drives the arc-shaped convex platform as it rotates with the chin guard assembly. The arc-shaped convex platform drives the lens bracket to rotate, pushing the goggles upward until the goggles reach the highest position. At this time, the arc-shaped convex platform stops with the lens bracket, the contact surface between the arc-shaped convex platform and the arc-shaped protrusion fits, and relative sliding occurs between the arc-shaped protrusion and the arc-shaped convex platform. The chin guard assembly can continue to rotate, finally pushing the goggles to the upper side of the helmet and the chin guard assembly to the rear side of the helmet body.

[0022] In addition, when the helmet is a half-helmet type, that is, the chin guard assembly is at the rear side of the helmet body and the goggles are in the lowest position. If the user pushes the chin guard assembly, the arc-shaped protrusion inside the chin guard assembly pushes the arc-shaped convex platform of the lens bracket. Also, because the arc direction of the arc-shaped protrusion in the half-helmet state is opposite to the arc direction of the arc-shaped convex platform, that is, the arc-shaped protrusion of the chin guard assembly moves downward while the arc-shaped convex platform of the lens bracket moves upward. When the user pushes the chin guard assembly downward, the goggles will have a lifting action. When the goggles are lifted to the highest position, the arc-shaped convex platform of the lens bracket slides with the arc-shaped protrusion of the chin guard assembly again. The lower chin guard continues to be pushed downward until it reaches the bottommost position, converting to a full-helmet type.

[0023] By pushing the chin guard assembly to different positions, the present utility model coordinates the movement of the goggles and the chin guard assembly, enabling the helmet to be convertible between a half-helmet and a full-helmet, and suitable for multiple scenarios. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0025] Figure 1 Schematic diagram of the assembly of each component of the helmet provided by the embodiment of the present utility model;

[0026] Figure 2 Schematic diagram of the positional relationship between the arc-shaped boss and the arc-shaped protrusion of the helmet provided by the embodiment of the present utility model in the first state;

[0027] Figure 3 Schematic diagram of the positional relationship between the arc-shaped boss and the arc-shaped protrusion of the helmet provided by the embodiment of the present utility model in the second state;

[0028] Figure 4 Schematic diagram of the positional relationship between the arc-shaped boss and the arc-shaped protrusion during the process of the chin guard assembly provided by the embodiment of the present utility model moving from the last position to the lowest position;

[0029] Figure 5 Structural diagram of the rotary gear seat provided by the embodiment of the present utility model;

[0030] Figure 6 Structural diagram of the chin guard assembly provided by the embodiment of the present utility model;

[0031] Figure 7 Structural diagram of the lens bracket provided by the embodiment of the present utility model;

[0032] Figure 8 Structural diagram of the fixed seat provided by the embodiment of the present utility model;

[0033] Figure 9 Structural diagram of the chin cover body provided by the embodiment of the present utility model;

[0034] Figure 10 Structural diagram of the fixed seat and the helmet body provided by the embodiment of the present utility model;

[0035] Figure 11 Structural diagram of the lens bracket, rotating disk and rotary gear seat provided by the embodiment of the present utility model;

[0036] Figure 12 Structural diagram of the lens bracket, rotating disk, rotary gear seat and fixed seat assembly provided by the embodiment of the present utility model.

[0037] Among them: 1 - helmet body; 2 - goggles; 3 - lens bracket; 31 - arc-shaped boss; 32 - locking groove; 33 - clamping groove; 34 - first slider; 35 - clamping part; 36 - swing arm; 37 - mounting seat; 4 - rotary gear seat; 41 - first chute; 42 - second chute; 43 - clamping end; 44 - limiting part; 45 - limiting groove; 5 - fixed seat; 51 - mounting hole; 52 - clamping corner; 6 - chin guard body; 61 - fixing hole; 7 - rotating disk; 71 - arc-shaped protrusion; 711 - pointed end; 712 - abutting end; 72 - second slider; 73 - fixing groove; 8 - sealing plate Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0039] In order to enable those skilled in the art in the technical field to better understand the solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Please refer to the attached Figure 1 , the present utility model provides a helmet, including: helmet body 1, goggles 2, lens bracket 3 and chin guard assembly. Among them, the goggles 2 and the lens bracket 3 are arranged synchronously, and the helmet body 1 is the carrier of each component.

[0041] Installation cavities are reserved on both sides of the helmet body 1, and the lens bracket 3 is arranged in the installation cavity. During installation, first place the lens bracket 3 into the installation cavity, that is, one end of the lens bracket 3 is connected to the helmet body 1. Since only one end of the lens bracket 3 is separately connected to the helmet body 1, the lens bracket 3 can rotate around one end of the lens bracket 3.

[0042] Please continue to refer to the attached Figure 1 , the chin guard assembly can be arranged in the helmet body 1 by means of nesting, and there is no fixed part connection between the chin guard assembly and the helmet body 1. That is to say, the chin guard assembly can rotate relative to the helmet body 1.

[0043] Please refer to the attached Figure 7, an arc-shaped boss 31 is provided on one side of the lens bracket 3. The arc-shaped boss 31 is located on the side of the lens bracket 3 away from the helmet body 1. Both side surfaces of the arc-shaped boss 31 are arc surfaces facing the end of the lens bracket 3 where the goggles 2 are installed, and both ends of the arc surface are connected by flat surfaces.

[0044] Please refer to the appendix Figure 6 , the chin guard assembly is provided with an arc-shaped protrusion 71. The arc-shaped protrusion 71 is located on the side of the chin guard assembly facing the helmet body 1. The two side surfaces of the arc-shaped protrusion 71 are two parallel arc surfaces, and one end of the outer arc surface of the arc-shaped protrusion 71 bends and extends inward to connect with one end of the other arc surface. The other ends of the two arc surfaces of the arc-shaped protrusion 71 are connected by flat surfaces. The arc-shaped protrusion 71 extends into the helmet body 1 and abuts against the arc-shaped boss 31 on the lens bracket 3. When the chin guard assembly rotates, the arc-shaped protrusion 71 pushes the arc-shaped boss 31, causing the lens bracket 3 and the chin guard assembly to rotate synchronously.

[0045] In some embodiments, when the helmet is converted from a full-face helmet to a half-face helmet, the positional relationship between the arc-shaped boss 31 and the arc-shaped protrusion 71 in the full-face helmet state is as shown in the appendix of the specification Figure 2 as shown.

[0046] Appendix Figure 2 shows the positional relationship between the arc-shaped boss and the arc-shaped protrusion of the helmet in the first state. At this time, both the goggles 2 and the chin guard assembly are in the lowest position. The arc-shaped boss 31 is located below the arc-shaped protrusion 71, and there is a certain distance between the arc-shaped boss 31 and the arc-shaped protrusion 71.

[0047] When the chin guard assembly needs to be lifted, that is, when the arc-shaped protrusion 71 rotates counterclockwise towards the appendix Figure 2 , the chin guard assembly and the goggles 2 come into contact with each other. During the process of lifting the chin guard assembly, the goggles 2 are driven to move upward synchronously. The arc-shaped boss 31 rotates counterclockwise, and the lens bracket 3 and the goggles 2 move synchronously until the arc-shaped boss 31 and the arc-shaped protrusion 71 come into contact.

[0048] Since the rotation center O point of the lens bracket 3 and the rotation center O' point of the arc-shaped protrusion 71 do not coincide, the rotation speeds of the arc-shaped boss 31 and the arc-shaped protrusion 71 are inconsistent. The rotation speed of the arc-shaped boss 31 is greater than the rotation speed of the arc-shaped protrusion 71. Therefore, there is a moment when the arc-shaped boss 31 and the arc-shaped protrusion 71 come into contact with each other.

[0049] When the arc-shaped boss 31 and the arc-shaped protrusion 71 are in contact with each other, the arc-shaped protrusion 71 abuts against the arc-shaped boss 31 and moves. At this time, the chin guard assembly and the goggles 2 are disengaged from contact. The upward movement of the goggles 2 is completely achieved by the acting force between the arc-shaped boss 31 and the arc-shaped protrusion 71. Until the arc-shaped boss 31 moves to the outside of the arc-shaped protrusion 71 and the goggles 2 move to the highest position, the arc-shaped protrusion 71 slides relative to the arc-shaped boss 31, causing the chin guard assembly to continue to move upward relative to the goggles 2.

[0050] Since the contact surfaces of the arc-shaped boss 31 and the arc-shaped protrusion 71 are both arc surfaces, and there is an included angle between the arc surfaces contacted by each boss, the outer arc surface of the arc-shaped protrusion 71 can push the inner arc surface of the arc-shaped boss 31 to rotate. However, the angle of the arc surface of the arc-shaped boss 31 relative to the arc surface of the arc-shaped protrusion 71 gradually decreases as the lens holder 3 rotates counterclockwise. When the included angle between the contact arc surfaces of the two bosses is reduced to 0°, the positional relationship between the contact arc surfaces of the two bosses is tangent. At this time, only sliding occurs between the contact arc surfaces of the two bosses. At this time, the arc-shaped protrusion 71 cannot generate a thrust on the arc-shaped boss 31, and the arc-shaped boss 31 is stationary. If the chin guard assembly continues to rotate, only the arc-shaped protrusion 71 slides relative to the arc-shaped boss 31. After that, the arc-shaped protrusion 71 and the arc-shaped boss 31 are disengaged. After the lens holder 3 reaches the rotation limit, the chin guard assembly can still continue to rotate until the chin guard assembly rotates to the rear side of the helmet body 1.

[0051] In addition, when the helmet is a half-helmet type, that is, the chin guard assembly rotates to the rear side of the helmet body 1, and the goggles 2 are at the lowest end, as shown in the attached Figure 3 figure.

[0052] Figure 3 The positional relationship between the arc-shaped boss and the arc-shaped protrusion of the helmet in the second state is shown. At this time, the arc-shaped boss 31 of the lens holder 3 abuts against the flat end of the arc-shaped protrusion 71 of the chin guard assembly.

[0053] In the second state, the goggles 2 are in the lowest position and the chin guard assembly is in the last position. That is to say, when the helmet is worn, the goggles 2 are in front of the user's eyes and the chin guard assembly is behind the user's head. At this time, the arc-shaped boss 31 and the arc-shaped protrusion 71 are in contact with each other, and the arc-shaped protrusion 71 is farther from the rotation center O point of the lens holder 3 than the arc-shaped boss 31.

[0054] By lowering the chin guard assembly, the arc-shaped protrusion 71 moves in the clockwise direction. The arc-shaped protrusion 71 abuts against the arc-shaped boss 31, causing the arc-shaped boss 31 to move in the clockwise direction, that is, causing the goggles 2 to move to the highest position and the arc-shaped boss 31 to move to the outside of the arc-shaped protrusion 71, as shown in the attached Figure 4 figure.

[0055] Subsequently, the arc-shaped protrusion 71 can continue to slide relative to the arc-shaped boss 31, that is, the arc-shaped protrusion 71 continues to rotate clockwise, while the arc-shaped boss 31 remains in its current position and cannot move, and the chin guard assembly continues to move downward relative to the goggles 2.

[0056] The arc-shaped boss 31 can rotate within a preset range. When the user needs to use a full-face helmet, the chin guard assembly at the rear side of the helmet body 1 is pushed forward, causing the arc-shaped protrusion 71 on the chin guard assembly to rotate upward clockwise. Since the rotation centers of the arc-shaped boss 31 and the arc-shaped protrusion 71 are distributed on both sides of the contact surface, the rotation direction of the arc-shaped boss 31 is opposite to that of the arc-shaped protrusion 71, which is counterclockwise upward rotation. This movement state is reflected on the goggles 2 and the chin guard assembly as follows: Pushing the chin guard assembly towards the initial end drives the goggles 2 to lift to the highest end. At this time, the contact surface of the arc-shaped boss 31 on the lens holder 3 fits again with the outer arc surface of the arc-shaped protrusion 71, and only sliding occurs between the two. The goggles 2 are stationary. When the chin guard assembly continues to rotate to the lowest position, the helmet changes from a half-face helmet to a full-face helmet.

[0057] When the chin guard assembly has not rotated to the terminal and the goggles 2 are at the highest position, the positional relationship between the arc-shaped boss 31 and the arc-shaped protrusion 71 is as shown in the attached Figure 4 As shown. At this time, the inner edge of the arc-shaped boss 31 on the lens holder 3 fits with the outer edge of the arc-shaped protrusion 71 of the chin guard assembly. At this time, only the arc-shaped protrusion 71 can slide along the track, and when the arc-shaped protrusion 71 has not reached the terminal, the arc-shaped protrusion 71 is always on the movement path of the arc-shaped boss 31. If the goggles 2 are pushed at this time, the arc-shaped boss 31 has a tendency to rotate clockwise, and the arc-shaped boss 31 abuts against the arc-shaped protrusion 71, only exerting a force pointing to the center of the arc of the contact surface between the two, and unable to provide a force in the tangential direction of the contact surface. Therefore, the arc-shaped protrusion 71 cannot be rotated. Only when the chin guard assembly reaches the rear side of the helmet body 1 and the arc-shaped protrusion 71 rotates to the end of the movement, the arc-shaped boss 31 and the arc-shaped protrusion 71 are disengaged, and the movement path of the arc-shaped boss 31 is unobstructed, can the goggles 2 rotate freely.

[0058] In some embodiments, please continue to refer to the attached Figure 2 , a pointed end 711 is provided at the first end of the arc-shaped protrusion 71. The pointed end 711 is located on the inner edge of the arc-shaped protrusion 71. In the first state, the pointed end faces the arc-shaped boss 31. When the pointed end abuts against the arc-shaped protrusion 71, as the arc-shaped protrusion 71 rotates, the pointed end guides the arc-shaped boss 31 to the outer edge of the arc-shaped protrusion 71.

[0059] With such a setting, it can ensure reliable contact between the arc-shaped protrusion 71 and the arc-shaped boss 31, ensure that the pointed end 711 of the arc-shaped protrusion 71 can smoothly push the arc-shaped boss 31 to move. At the same time, due to the existence of the pointed end 711, the thrust of the pointed end 711 on the arc-shaped boss 31 can be effectively reduced, avoiding the arc-shaped boss 31 being crushed by the arc-shaped protrusion 71.

[0060] In some embodiments, please also refer to the attached Figure 3 , the second end of the arc-shaped protrusion 71 is provided with a supporting end 712. In the second state, the center of the arc corresponding to the arc-shaped boss 31 is located on the side close to the arc-shaped protrusion 71, and the supporting end abuts against one side of the arc-shaped protrusion 71. By lowering the chin guard assembly, the supporting end pushes the arc-shaped protrusion 71 upward, causing the goggles 2 to move to the highest position.

[0061] With such a setting, by utilizing the radian setting of the arc-shaped boss 31, under the pushing action of the supporting end 712 of the arc-shaped protrusion 71, the arc-shaped boss 31 can smoothly swing upward, that is, move clockwise, ensuring the lifting of the goggles 2 and the lens holder 3.

[0062] Please refer to the attached description Figure 6 and the attached Figure 9 , the chin guard assembly includes a rotating disk 7 and a chin cover 6. The rotating disk 7 is provided with an arc-shaped protrusion 71 on the side close to the helmet body 1. The chin cover 6 is located outside the helmet body 1 to prevent the chin cover 6 from rubbing against the helmet body 1 during rotation. The side of the chin cover 6 is provided with fixing holes 61, and specifically there are three fixing holes 61, and the fixing holes 61 are distributed in a triangle, and the distances between the fixing holes 61 are the same. Fixing members are arranged in the fixing holes 61 to fixedly connect the chin cover 6 and the rotating disk 7. When the chin cover 6 is pushed, the rotating disk 7 can be driven to move together. The setting method of the fixing holes 61 prevents the position deviation or looseness between the rotating disk 7 and the chin cover 6, resulting in the synchronous movement of the rotating disk 7 and the chin cover 6 of the helmet being retarded and affecting the user experience. To prevent the fixing members from being damaged, a cover plate 8 is covered at the position where the fixing members are arranged to cover the fixing members, and at the same time, it also plays a role in aesthetics.

[0063] Please refer to the attached Figure 1 and the attached Figure 5, the helmet body 1 further includes a rotary gear seat 4. The rotary gear seat 4 is arranged in the installation cavity of the helmet body 1. A first chute 41 and a second chute 42 are arranged on the rotary gear seat 4. First sliders 34 and second sliders 72 are respectively arranged on the lens bracket 3 and the rotating disk 7. The first sliders 34 are arranged in the first chute 41, and the second sliders 72 are arranged in the second chute 42. The lens bracket 3 and the rotating disk 7 are slidably connected to the rotary gear seat 4, and each slider can only move along a preset track in the corresponding chute, thereby restricting the rotation of the lens bracket 3 and the rotating disk 7. In addition, the second chute 42 is located on one side in the arc center direction of the first chute 41. The first chute 41 and the second chute 42 are respectively located at different positions in the thickness direction of the rotary gear seat. The second chute 42 is located in a circular cavity arranged inside the rotary gear seat 4, so that the second chute 42 is closer to the helmet body 1 than the first chute 41. After the second sliders 72 on the rotating disk 7 are placed in the second chute 42, the arc-shaped protrusions 71 on the same side of the rotating disk 7 as the second sliders 72 extend into the reserved holes of the rotary gear seat 4 and are in full contact with the arc-shaped bosses 31 on the lens bracket 3.

[0064] Among them, both the first chute 41 and the second chute 42 are specifically arc-shaped chutes. The angle corresponding to the arc of the first chute 41 is 38°, that is, the angle by which the rotation center O point of the lens bracket 3 can rotate is 38°; the angle corresponding to the arc of the second chute 42 is 195°, that is, the angle by which the rotation center O' point of the lens bracket 3 can rotate is 195°; the a end is the starting end of rotation, and the b end is the ending end of rotation. That is, when the chin guard assembly and the goggles 2 are both at the lowest end, each slider is at the starting end of the chute. In addition, clamping ends 43 are provided at both the beginning and the end of the first chute 41, so that the first sliders 34 are stable at the beginning and end positions of the chute and do not easily slide.

[0065] In some embodiments, please also refer to the appendix Figure 8 , appendix Figure 10 and appendix Figure 12, the helmet body 1 is also provided with a fixing seat 5 at the port of the above-mentioned installation cavity. The fixing seat 5 is a cover plate whose edge can fit against the inner side of the installation cavity. One side of the fixing seat 5 is provided with a clamping angle 52. The setting direction of the clamping angle 52 is perpendicular to the fixing plate 5, and the edge of the clamping angle 52 is provided with a buckle extending outward. When the fixing plate 5 closes the opening of the installation cavity, the clamping angle 52 extends into the helmet body 1 along with the fixing seat 5 and is clamped with the helmet body 1. The fixing seat 5 is fixed on the helmet body 1 through the clamping angle 52, so that the fixing seat 5 and the inner wall of the installation cavity can clamp the lens bracket 3 and the rotation gear seat 4 in the helmet body 1. Moreover, the fixing seat 5 is also provided with an installation hole 51. The edge of the installation hole 51 can fit against the side surface of the rotating disc 7, rotatably connecting the rotating disc 7 with the fixing seat 5. The end surface of the rotating disc 7 away from the helmet body 1 is flush with the outer surface of the fixing seat 5, and the other side extends into the circular cavity of the rotation gear seat 4. The second slider 72 is extended into the first chute 42, and the arc-shaped protrusion 71 abuts against the arc-shaped boss 31 of the lens bracket 3.

[0066] In some embodiments, as shown in the attached drawings of the specification Figure 7 As shown, the lens bracket 3 includes a mounting seat 37 and a swing arm 3. The swing arm 3 is arranged at one end of the mounting seat 37. The setting directions of the mounting seat 37 and the swing arm 3 are perpendicular. The mounting seat 37 is provided with a clamping groove 33, and the setting direction of the clamping groove 33 is the same as that of the goggles 2; the swing arm 3 is provided with a locking groove 32 and an arc-shaped boss 31. The setting direction of the locking groove 32 is the same as that of the swing arm 3, and the setting direction of the arc-shaped boss 31 has a certain angle with the setting direction of the swing arm 3.

[0067] The clamping groove 33 is used for clamping the goggles 2. The clamping groove 33 is also provided with a clamping member 35 and a first elastic member. One end of the first elastic member is connected to the inner wall of the clamping groove 33, and the other end abuts against the clamping member 35. The first elastic member pushes the clamping member 35 to clamp the goggles 2 tightly, ensuring the stable installation of the goggles. A second elastic member and a first slider 34 are arranged in the locking groove 32 on the swing arm 3. When the second elastic member is located at the starting end of the first chute 41, the second elastic member applies an elastic force to the first slider 34, pushing the first slider 34 against the clamping end 43 at the starting end of the first chute 41 to lock the first slider 34 at the starting position. If the first slider 34 is to slide, the elastic force of the second elastic member needs to be overcome.

[0068] When the first slider 34 completes sliding and moves to the end of the first chute 41, the second elastic member pushes the first slider 34 into the clamping end 43 at the end of the chute through the elastic force to lock the slider at the end of the chute. The initial and final positions of the first slider 34 also correspond to the initial and final positions of the lens bracket 3. By setting the first chute 41, the angle that the lens bracket 3 can be lifted is restricted, so that the goggles 2 have two states of covering and opening, and the two states are kept stable through the clamping end 43 to prevent the goggles 2 from sliding up and down.

[0069] Furthermore, the rotating disk 7 is connected to the chin cover 6, and the chin cover 6 supports the goggles 2. Therefore, when both the chin cover 6 and the lens holder 3 are in the lowest position, the first slider 34 of the lens holder 3 is located within the starting end engaging end 43 of the first chute 41. At this time, the locking effect of the first slider 34 on the lens holder 3 also acts on the chin cover 6 and the rotating disk 7 fixed thereto. Similarly, when the chin cover is lifted, it can drive the goggles 2 carried thereon to be lifted by a certain angle.

[0070] In addition, as shown in Figure 5 and Figure 11 shown, a limiting groove 45 is further provided between the first chute 41 of the rotary gear seat 4 and the rotating disk 7. The limiting groove 45 is specifically an arc-shaped groove with a radian angle of 195°. A limiting member 44 is provided at one end of the limiting groove 45. A fixing groove 73 is provided at the edge of the rotating disk 7. The fixing groove 73 can rotate together with the rotating disk 7. When the rotating disk 7 rotates to the end, the fixing groove 73 is engaged with the limiting member 44 to lock the positions of the rotating disk 7 and the chin cover, further ensuring the stability of the half-helmet state.

[0071] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0072] Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A helmet, characterized in that, Comprising: A helmet body (1); A lens bracket (3) with a goggle (2), rotatably arranged on the helmet body (1), and the lens bracket (3) is provided with an arc-shaped boss (31); A chin guard assembly, rotatably arranged on the helmet body (1), provided with an arc-shaped protrusion (71) facing the arc-shaped boss (31). The rotation center of the lens bracket (3) is farther away from the goggle (2) than the rotation center of the chin guard assembly, and there is a height difference between the two rotation centers in the height direction of the goggle (2). The length of the arc-shaped protrusion (71) is greater than the length of the arc-shaped boss (31); In the first state, both the goggle (2) and the chin guard assembly are in the lowest position, and the arc-shaped boss (31) is located below the arc-shaped protrusion (71). By lifting the chin guard assembly, the chin guard assembly drives the goggle (2) to move synchronously. When the arc-shaped boss (31) and the arc-shaped protrusion (71) abut, the arc-shaped protrusion (71) abuts against the arc-shaped boss (31) and moves it until the arc-shaped boss (31) moves to the outside of the arc-shaped protrusion (71), and the goggle (2) moves to the highest position. The arc-shaped protrusion (71) slides relative to the arc-shaped boss (31), enabling the chin guard assembly to continue to lift relative to the goggle (2); In the second state, the goggle (2) is in the lowest position and the chin guard assembly is in the rearmost position. The arc-shaped boss (31) and the arc-shaped protrusion (71) abut. The arc-shaped protrusion (71) is farther away from the rotation center of the lens bracket (3) than the arc-shaped boss (31). By lowering the chin guard assembly, the arc-shaped protrusion (71) abuts against the arc-shaped boss (31) and moves it, causing the goggle (2) to move to the highest position. The arc-shaped boss (31) moves to the outside of the arc-shaped protrusion (71), and the arc-shaped protrusion (71) slides relative to the arc-shaped boss (31), enabling the chin guard assembly to continue to move downward relative to the goggle (2).

2. The helmet according to claim 1, characterized in that, The first end of the arc-shaped protrusion (71) is provided with a pointed end (711), and the pointed end is located on the inner edge of the arc-shaped protrusion (71). In the first state, the pointed end faces the arc-shaped boss (31). When the pointed end and the arc-shaped protrusion (71) abut, as the arc-shaped protrusion (71) rotates, the pointed end guides the arc-shaped boss (31) to the outer edge of the arc-shaped protrusion (71).

3. The helmet according to claim 1, characterized in that, The second end of the arc-shaped protrusion (71) is provided with a abutting end (712). In the second state, the center of the arc corresponding to the arc-shaped boss (31) is located on the side close to the arc-shaped protrusion (71). The abutting end abuts against one side of the arc-shaped protrusion (71). By lowering the chin guard assembly, the abutting end jacks up the arc-shaped protrusion (71) upward, causing the goggle (2) to move to the highest position.

4. The helmet according to claim 1, characterized in that The helmet body (1) is fixed with a rotary gear seat (4). The rotary gear seat (4) is provided with a first sliding groove (41) and a second sliding groove (42). The first sliding groove (41) and the second sliding groove (42) are respectively arranged at different positions in the thickness direction of the rotary gear seat (4). The lens bracket (3) is slidably connected with the first sliding groove (41), and the chin guard assembly is slidably connected with the second sliding groove (42). The two ends of the first sliding groove (41) are provided with clamping ends (43) for locking the position of the lens bracket (3).

5. The helmet according to claim 4, characterized in that, The chin guard assembly includes a rotating disk (7) and a chin guard body (6) fixedly connected. The rotating disk (7) is provided with the arc-shaped protrusion (71), and the chin guard body (6) is located outside the helmet body (1).

6. The helmet according to claim 5, characterized in that, The chin guard body (6) is provided with fixing holes (61). Specifically, there are three fixing holes (61). Each of the fixing holes (61) is distributed in a triangle with the same spacing. Fixing members are arranged in each of the fixing holes (61) to fixedly connect the chin guard body (6) and the rotating disk (7). And the chin guard body (6) is provided with a sealing plate (8) for covering each of the fixing members.

7. The helmet according to claim 6, characterized in that, The rotary gear seat (4) is provided with a limiting groove (45). One end of the limiting groove (45) is provided with a limiting member (44). The limiting groove (45) is located between the first sliding groove (41) and the second sliding groove (42). The outer edge of the rotating disk (7) is provided with a fixing groove (73). When the chin guard assembly moves to the last position, the fixing groove (73) is clamped with the limiting member (44) to lock the position of the chin guard assembly.

8. The helmet according to claim 7, characterized in that, The helmet body (1) is clamped with a fixing seat (5). The fixing seat (5) encloses the lens bracket (3) and the rotary gear on the helmet body (1). The rotating disk (7) is also rotatably connected to the fixing seat (5), so that the arc-shaped protrusion (71) on one side of the rotating disk (7) extends in and abuts against the arc-shaped boss (31) of the lens bracket (3).

9. The helmet according to claim 8, wherein One end of the lens bracket (3) far from the rotating disk (7) is provided with a clamping groove (33). A first elastic member is arranged in the clamping groove (33). One side of the first elastic member abuts against the clamping groove (33), and the other side is connected with a clamping member (35). After the goggles (2) are clamped into the clamping groove (33), the first elastic member applies an elastic force to the clamping member (35) to fix the goggles (2).

10. The helmet according to claim 9, characterized in that, The chin guard body (6) supports the goggles (2). When the chin guard body (6) rotates upward, it can push the goggles (2) to move synchronously.

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