Helmet

Abstract

The utility model relates to the technical field of helmets, in particular to a helmet which comprises a helmet body, goggles and a jaw protector, the left end and the right end of the helmet body are each provided with a rotating area, the two ends of the goggles are rotationally connected with the corresponding rotating areas, and the two ends of the jaw protector are rotationally connected with the corresponding rotating areas. The rotating center of the left end and the rotating center of the right end of the jaw protector and the rotating center of the two ends of the goggles are arranged in a non-coaxial mode, the left end and the right end of the jaw protector clamp the left end and the right end of the goggles, and when the jaw protector is in the full-helmet state and the goggles are closed, the jaw protector is switched into the half-helmet state and can jack the goggles to the avoiding area for avoiding; due to the fact that the jaw protector and the goggles are arranged in a non-coaxial mode, the joint of the jaw protector and the goggles can be tight, a large gap does not exist, a sealing state is formed, safety can be improved, and dust and gravel are prevented from entering the helmet body from the gap between the jaw protector and the goggles.

Description

Technical Field

[0001] The utility model relates to the technical field of helmets, in particular to a helmet. Background Art

[0002] When riding various motorcycles, racing cars, racing boats, balance cars, aircrafts, and riding electric cars or bicycles, people should wear helmets to protect their heads. In addition, when performing tasks in spray painting workshops, firefighting and disaster relief, anti-terrorism and anti-riot, and doing various operations in harsh environments such as mining, coal mining, and excavation, people also need to wear helmets to protect their heads, so as to avoid various unexpected injuries. As we all know, the structural types of helmets mainly include full-face helmets and half-face helmets. The full-face helmet is equipped with a jaw guard that embraces the user's chin, which can provide good safety protection for the wearer's entire head. The half-face helmet does not have a jaw guard that embraces the user's chin, but because it does not have a jaw guard that restrains the wearer's mouth and nose, it can drink water, talk, etc. without taking off the helmet during rest, so it has better user friendliness.

[0003] In the existing switchable full-face and half-face helmets, the chin guard and the goggles are generally arranged coaxially, and the rotation radius of the chin guard is set to be larger than the rotation radius of the goggles, so that the chin guard can be turned around the goggles to the rear end of the helmet body to form a half-face state. For example, the utility model patent with application number "201720776271.5" discloses a full-face and half-face dual-purpose motorcycle helmet. This design requires two operations when switching to the half-face state and when opening the goggles. In addition, in this way, there is inevitably a gap between the two at the joint, and it is difficult for the chin guard and the goggles to achieve good airtightness. During riding, dust and sand and gravel are likely to enter the helmet body through the gap between the two, causing safety hazards. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a technical solution that can solve at least one of the above-mentioned problems.

[0005] A helmet comprises a helmet body, goggles and a jaw guard, wherein a rotation area is arranged at both left and right ends of the helmet body, and both ends of the goggles are rotationally connected to the corresponding rotation area, so that the goggles rotate along the rotation center, thereby realizing opening and closing, and both ends of the jaw guard are also rotationally connected to the corresponding rotation area, and the rotation centers of the left and right ends of the jaw guard and the rotation centers of the two ends of the goggles are non-coaxially arranged, and the left and right ends of the jaw guard clamp the left and right ends of the goggles therein, and the goggles are an avoidance area when in an open state, so that the jaw guard can pass over the goggles to switch between a full helmet state and a half helmet state;

[0006] When the chin guard is in full helmet state and the goggles are closed, the chin guard switches to half helmet state. The chin guard can lift the goggles to the avoidance area for avoidance, so that the chin guard can pass over the goggles and switch to half helmet state.

[0007] Preferably, a linkage mechanism is provided in the rotating area, and when the chin guard is in a half-helmet state and the goggles are closed, the chin guard can be switched to a full-helmet state by driving the goggles to rotate to the avoidance area through the linkage mechanism, so that the chin guard can pass over the goggles and switch to a full-helmet state.

[0008] Preferably, the linkage mechanism includes connecting members arranged at both ends of the goggles, the ends of the connecting members are rotatably connected to the rotating area, the rotation center of the connecting members is the rotating axis A, the rotation center of the jaw guard and the rotating area is the rotating axis B, and the rotating axis B is located to the upper left of the rotating axis A;

[0009] The linkage mechanism also includes a rotating block arranged at the lower part of the connecting piece, and a rotating piece arranged on the inner side of the end of the jaw guard. A driving block cooperating with the rotating block is provided on one side of the rotating piece. After the jaw guard rotates, the rotating piece is driven to rotate, thereby driving the connecting piece to rotate, and then driving the goggles to rotate to the avoidance area. The jaw guard can then pass over the goggles and reset to the full helmet state.

[0010] Preferably, an arc-shaped groove is formed on the rotating area, a clamping column is formed on the inner side of the connecting piece, and a clamping portion is formed at the rear of the arc-shaped groove. When the goggles are rotated upward, the clamping column can be rotated along the arc-shaped groove to the clamping portion, and the clamping portion clamps the clamping column at the rear end of the arc-shaped groove, thereby fixing the goggles;

[0011] The clamping part comprises a protruding part arranged at the bottom of the rear section of the arc-shaped groove, and a deformation groove is formed below the protruding part for the protruding part to deform when subjected to force.

[0012] Preferably, a partition is provided between the connecting piece and the jaw guard, the partition is fixedly connected to the rotating area, an active cavity is formed between the partition and the rotating area for the connecting piece to move when rotating, and an opening is provided in the middle of the partition for the rotating piece to rotate and for the jaw guard to be rotatably connected to the helmet body.

[0013] Preferably, a limiting mechanism is provided at the opening for limiting the position of the jaw guard when it is rotated to a half-helmet state, the limiting mechanism includes a lower protrusion formed on the lower side of the opening, and an upper protrusion formed on one side of the rotating part, and an elastic groove for the lower protrusion to be deformed by force is formed on the partition below the lower protrusion. When the jaw guard is rotated to the half-helmet state, the lower protrusion can limit the upper protrusion to prevent the rotating part from rotating.

[0014] As another preferred embodiment of the present invention, the linkage mechanism includes a guide block arranged in the rotating area, an arc-shaped guide hole is formed on the guide block, a sliding member slidably matched with the arc-shaped guide hole is provided in the arc-shaped guide hole, and the top of the sliding member is connected to the goggles; after the sliding member is subjected to force, it rotates along the arc-shaped guide hole, and its rotation center is the rotation axis C, and the rotation center of the jaw guard and the rotating area is the rotation axis D, and the rotation axis D is located to the upper left of the rotation axis C; the linkage mechanism also includes a driven block formed on the sliding member, and a rotating member provided on the inner side of the jaw guard, and an active block formed to cooperate with the force-bearing block is provided on one side of the rotating member;

[0015] When the jaw guard is in the half-helmet state and the goggles are closed, rotate the jaw guard counterclockwise, the active block will drive the driven block, thereby driving the sliding part to rotate, and then driving the goggles to rotate to the avoidance area, and the jaw guard can pass over the goggles and reset to the full-helmet state.

[0016] Preferably, a fixed plate is provided in the rotating area, the guide block is provided on the inner side of the fixed plate, a movable cavity for movement of the sliding part is formed on the inner side of the fixed plate, a movable opening is formed in the fixed plate, and the jaw guard is rotatably connected to the rotating area through the movable opening by means of an axial connection.

[0017] Preferably, a positioning assembly is provided on the sliding part, which can position the goggles in a closed or open state. The positioning assembly includes a slide groove formed on the sliding part, a slider slidably matched with the slide groove is provided on the slide groove, a limiting column is formed on one side of the slider, a spring is provided on the top of the slide groove to provide downward pressure for the slider, an arc-shaped limiting hole is formed on the fixed plate, and positioning grooves matching with the limiting column are formed at the lower parts of both ends of the arc-shaped limiting hole. After the goggles are closed or opened, the limiting column is located in the corresponding positioning groove to fix the goggles. During the rotation of the goggles, the limiting column moves in the arc-shaped limiting hole.

[0018] Preferably, a limiting assembly is provided on the fixing plate, which can fix the jaw guard in the half-helmet state. The limiting assembly includes a guide groove formed on the fixing plate, a pressure block which slides up and down with the guide groove is provided on the guide groove, a spring is provided between the top of the pressure block and the top of the guide groove, one side of the pressure block extends outward to form an extension portion, and a pressure groove is provided at the bottom of the extension portion. A positioning rod which cooperates with the pressure groove is formed on the inner side of the jaw guard. When the jaw guard is rotated to the half-helmet state, the positioning rod is rotated into the pressure groove, and the positioning rod is pressed by the pressure groove to limit the jaw guard.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a helmet, because the jaw guard and the goggles are not coaxially arranged, the junction between the two can be tight without a large gap, forming a sealed state, such an arrangement can improve safety and prevent dust and sand from entering the interior of the helmet body through the gap between the two;

[0020] The rotation centers of the left and right ends of the jaw guard and the rotation centers of the two ends of the goggles are not coaxially arranged. When the jaw guard is in the full helmet state and the goggles are closed, the jaw guard switches to the half helmet state. The jaw guard can lift the goggles to the avoidance area for avoidance, and also open the goggles, so that the jaw guard can pass over the goggles and switch to the half helmet. In this way, the user can switch the helmet from the full helmet state to the half helmet state and open the goggles at one time with one hand during riding, which makes the user operation simpler and faster. At the same time, it can also improve the safety of the user during riding, and prevent the user from leaving the steering handle with both hands to adjust the helmet, causing safety hazards;

[0021] In addition, the utility model is also provided with a linkage mechanism. When the goggles are in a closed state, the jaw guard is rotated, and the linkage mechanism can drive the goggles to rotate to the avoidance area, which can also facilitate the user to achieve one-handed operation. The helmet can be changed from a half-helmet state and the goggles are in a closed state, and one-handed operation can also be achieved.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is one of the structural schematic diagrams of the utility model.

[0025] Figure 2 This is the second structural diagram of the present utility model.

[0026] Figure 3 It is the structural schematic diagram of the utility model to three.

[0027] Figure 4 It is a structural schematic diagram of the linkage mechanism in the utility model.

[0028] Figure 5 It is a structural schematic diagram of the clamping part in the utility model.

[0029] Figure 6 It is a structural schematic diagram of the limiting mechanism in the utility model.

[0030] Figure 7 It is a schematic diagram of the exploded structure of the utility model.

[0031] Figure 8 It is another structural schematic diagram of the linkage mechanism in the utility model.

[0032] Fig. 9 It is a structural schematic diagram of the fixing plate in the utility model.

[0033] Fig.10 It is a structural schematic diagram of the positioning component in the utility model.

[0034] Fig.11 It is another structural schematic diagram of the positioning component in the utility model.

[0035] Fig.12 It is a structural schematic diagram of the positioning rod in the utility model.

[0036] Fig.13 It is a structural schematic diagram of the limit assembly in the utility model.

[0037] Fig.14 It is a structural schematic diagram of the blocking hole in the utility model.

[0038] In the figure: 1, helmet body; 10, goggles; 11, jaw guard; 12, rotation area; 13, avoidance area; 14, limit groove;

[0039] 2. Connecting member; 21. Rotating axis A; 22. Rotating axis B; 23. Rotating block; 24. Rotating member; 25. Driving block; 26. Arc groove; 27. Clamping column;

[0040] 3. Clamping portion; 30. Raised portion; 31. Deformation groove; 35. Avoidance notch; 36. Partition plate; 37. Opening;

[0041] 4. Limiting mechanism; 41. Lower protrusion; 42. Upper protrusion; 43. Elastic groove; 44. Card slot;

[0042] 5. Guide block; 50. Arc guide hole; 51. Sliding member; 52. Rotation axis C; 53. Rotation axis D; 54. Follower block; 55. Rotating member; 56. Active block; 57. Avoidance;

[0043] 6. Fixed plate; 60. Movable opening;

[0044] 7. Positioning assembly; 70. Slide groove; 71. Sliding block; 72. Limiting column; 73. Arc-shaped limiting hole; 74. Positioning groove;

[0045] 8. Limiting assembly; 80. Guide groove; 81. Pressing block; 82. Extension portion; 83. Pressing groove; 84. Positioning rod;

[0046] 9. Blocking hole; 90. Blocking rod. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] In the present utility model embodiment, please refer to Figures 1 to 3 A helmet, comprising a helmet body 1, goggles 10 and a jaw guard 11, characterized in that a rotation area 12 is provided at both left and right ends of the helmet body 1, and both ends of the goggles 10 are rotationally connected to the corresponding rotation area 12, so that the goggles 10 rotate along the rotation center to achieve opening and closing, and both ends of the jaw guard 11 are also rotationally connected to the corresponding rotation area 12, and the rotation centers of the left and right ends of the jaw guard 11 and the rotation centers of the two ends of the goggles 10 are non-coaxially arranged, and the left and right ends of the jaw guard 11 clamp the left and right ends of the goggles 10 therein; it should be noted that the rotation area 12 is only an area where the goggles 10 and the jaw guard 11 are connected, and it is not a limitation on the structure and protection range;

[0049] When the goggles 10 are in the open state, it is an avoidance zone 13, and the jaw guard 11 can pass over the goggles 10 to switch between the full helmet and the half helmet state; because the jaw guard 11 and the goggles 10 are not coaxially arranged, therefore, after calculation and design, when the goggles 10 are within a certain range of opening, this time is defined as the avoidance zone 13, and the jaw guard 11 can bypass the goggles 10 to switch between the half helmet and the full helmet state. Since the two are not coaxially arranged, the junction between the two can be tight without a large gap. When the jaw guard 11 is in the full helmet state and the goggles 10 are closed, the bottom of the goggles 10 and the top of the jaw guard 11 are embedded to form a sealed state. This arrangement can improve safety and prevent dust and sand from entering the interior of the helmet body 1 through the gap between the two. The embedding method can be set to a concave-convex matching structure, which can make the connection more stable.

[0050] The rotation centers of the left and right ends of the jaw guard 11 and the rotation centers of the two ends of the goggles 10 are not coaxially arranged. When the jaw guard 11 is in the full helmet state and the goggles 10 are closed, the jaw guard 11 switches to the half helmet state. The jaw guard 11 can lift the goggles 10 to the avoidance area 13 for avoidance, so that the jaw guard 11 can pass the goggles 10 and switch to the half helmet. In this way, the user can switch the helmet from the full helmet state to the half helmet state with one hand during riding, which makes the user operation simpler and faster. At the same time, it can also improve the safety of the user during riding and prevent the user from leaving the steering handle with both hands to adjust the helmet, causing safety hazards.

[0051] As a further solution of the utility model, a linkage mechanism is provided in the rotating area 12. When the jaw guard 11 is in a half-helmet state and the goggles 10 are closed, the jaw guard 11 can be switched to a full-helmet state by the linkage mechanism to drive the goggles 10 to rotate to the avoidance area 13, so that the jaw guard 11 can pass over the goggles 10 and switch to a full-helmet. By setting up the linkage mechanism, when the goggles 10 are in a closed state, the jaw guard 11 is rotated, and the linkage mechanism can drive the goggles 10 to rotate to the avoidance area 13, which can also facilitate the user to achieve one-handed operation. The helmet can be changed from a half-helmet state with the goggles 10 in a closed state, and one-handed operation can also be achieved.

[0052] See also Figure 4 As a preferred solution of the utility model, the linkage mechanism includes a connecting member 2 provided at both ends of the goggles 10, the ends of the connecting member 2 are rotatably connected to the rotating area 12, the rotation center of which is the rotation axis A21, the rotation center of the jaw guard 11 and the rotating area 12 is the rotation axis B22, and the rotation axis B22 is located to the upper left of the rotation axis A21;

[0053] The linkage mechanism also includes a rotating block 23 arranged at the lower part of the connecting member 2, and a rotating member 24 arranged on the inner side of the end of the jaw guard 11. A driving block 25 cooperating with the rotating block 23 is provided on one side of the rotating member 24. When the jaw guard 11 is in a half-helmet state and the goggles 10 are closed, the jaw guard 11 is rotated counterclockwise, and the driving block 25 will drive the rotating block 23 to rotate clockwise around the rotation axis A21, thereby driving the goggles 10 to rotate to the avoidance area 13, and the jaw guard 11 can pass over the goggles 10 and reset to the full-helmet state.

[0054] See also Figure 5 As a further solution of this embodiment, the goggles 10 need to be positioned after opening to prevent them from closing during use. Therefore, an arc groove 26 is provided on the rotation area 12, a clamping column 27 is formed on the inner side of the connecting member 2, and a clamping portion 3 is formed at the rear of the arc groove 26. When the goggles 10 are rotated upward, the clamping column 27 can be rotated along the arc groove 26 to the clamping portion 3, and the clamping portion 3 clamps the clamping column 27 at the rear end of the arc groove 26, thereby fixing the goggles 10;

[0055] The clamping portion 3 includes a protrusion 30 arranged at the bottom of the rear section of the arc groove 26, and a deformation groove 31 is formed below the protrusion 30 for the protrusion 30 to deform when subjected to force. By setting the deformation groove 31, when the connecting member 2 is moved, it is convenient for the clamping column 27 to pass over the protrusion 30 to avoid the problem of poor connection. At the same time, the protrusion 30 itself is elastic and can also facilitate its own deformation, and provide an elastic force to fix the clamping column 27 to prevent the goggles 10 from loosening after opening.

[0056] As a further solution of this embodiment, an avoidance notch 35 for avoiding the rotating axis B22 is formed in the middle of the connecting member 2. Through the design of the avoidance notch 35, the goggles 10 can have a larger space for movement to prevent the setting of the rotating axis B22 from interfering with the operation of the connecting member 2. At the same time, the rotating member 24 is arranged at the rotating axis B22 and rotates coaxially with the jaw guard 11. This can make its rotation smoother and prevent its running speed from being unstable when it is not coaxially set.

[0057] Please refer to Figure 7 As a further solution of this embodiment, a partition 36 is provided between the connecting member 2 and the jaw guard 11, and the partition 36 is fixedly connected to the rotating area 12. An active cavity is formed between the partition 36 and the rotating area 12 for the connecting member 2 to move when rotating. The middle part of the partition 36 has an opening 37 for the rotating member 24 to rotate and for the jaw guard 11 to be rotatably connected to the helmet body 1; due to the setting of the partition 36, the connecting member 2 can be limited. Since the connecting member 2 is relatively thin and thin, it may be deformed during use. After the partition 36 is set, it can play a role of limiting support.

[0058] Please refer to Figure 6 As a further solution of this embodiment, in this embodiment, a limiting mechanism 4 is provided at the opening 37 for limiting the position of the jaw guard 11 when it is rotated to the half-helmet state. Since, in the half-helmet state, the jaw guard 11 is located at the rear end of the helmet, it may become loose if it is not restricted. For example, on a bumpy road, if the jaw guard 11 becomes loose, abnormal noise and vibration may occur, which may cause discomfort to the user. Therefore, the limiting mechanism 4 is provided. The limiting mechanism 4 includes a lower protrusion 41 formed on the lower side of the opening 37, and an upper protrusion 42 formed on one side of the rotating member 24. A spacer 36 at the lower part of the lower protrusion 41 is formed with a spacer for the lower protrusion 4 1 is an elastic groove 43 that is deformed by force. When the jaw guard 11 rotates to the half-helmet state, the lower protrusion 41 can limit the upper protrusion 42 to prevent the rotating member 24 from rotating. Similarly, the limiting mechanism 4 has the same principle as the above-mentioned clamping portion 3, and is provided with an elastic groove 43. After the rotating member 24 rotates to the right position, the upper protrusion 42 will pass over the lower protrusion 41, and the lower protrusion 41 will clamp the upper protrusion 42 at the opening 37, and the elastic groove 43 also provides an elastic force for the lower protrusion 41 to prevent the jaw guard 11 from loosening. It should be noted that there is a clamping groove 44 between the lower protrusion 41 and the opening 37. When the jaw guard 11 is in the half-helmet state, the upper protrusion 42 is clamped in the clamping groove 44.

[0059] See also Figure 8As another preferred embodiment of the present invention, the linkage mechanism includes a guide block 5 disposed in the rotation area 12, and an arc-shaped guide hole 50 is formed on the guide block 5. A sliding member 51 that slidably cooperates with the arc-shaped guide hole 50 is disposed in the arc-shaped guide hole 50, and the top of the sliding member 51 is connected to the goggles 10; after the sliding member 51 is subjected to force, it rotates along the arc-shaped guide hole 50, and its rotation center is the rotation axis C52; it should be noted that the rotation axis C52 is a virtual rotation axis, which is actually the rotation center of the arc-shaped guide hole 50 and the sliding member 51; the rotation center of the jaw guard 11 and the rotation area 12 is the rotation axis D53, and the rotation axis D53 is located at the upper left of the rotation axis C52;

[0060] The linkage mechanism further includes a driven block 54 formed on the sliding member 51, and a rotating member 55 provided on the inner side of the jaw guard 11, and an active block 56 formed to cooperate with the force-bearing block is provided on one side of the rotating member 55;

[0061] From the above, it can be seen that in both this embodiment and another embodiment, the rotation centers of the jaw guard 11 and the goggles 10 are not on the same rotation axis. In this way, it can also be achieved that when the jaw guard 11 is in the half-helmet state and the goggles 10 are closed, the jaw guard 11 is rotated counterclockwise, and the active block 56 drives the driven block 54, thereby driving the sliding member 51 to rotate, and then driving the goggles 10 to rotate to the avoidance area 13, and the jaw guard 11 can pass over the goggles 10 and reset to the full-helmet state.

[0062] The difference between this embodiment and another embodiment is that the sliding member 51 (equivalent to the connecting member 2 of another embodiment) is not directly connected to the rotating area 12. After the guide block 5 is added, the sliding member 51 cooperates with the guide block 5 to achieve the rotational connection. Compared with another embodiment, the structure of this design will be relatively complex, but with this design, the goggles 10 will have a larger space for movement.

[0063] See also Fig. 9 As a further solution of this embodiment, a fixed plate 6 is provided in the rotating area 12, and the guide block 5 is provided on the inner side of the fixed plate 6. An active cavity for the sliding member 51 to move is formed on the inner side of the fixed plate 6. An active opening 60 is formed in the fixed plate 6. The jaw guard 11 is rotatably connected to the rotating area 12 through the active opening 60 by means of an axial connection. After the fixed plate 6 is provided, the sliding member 51 moves between the active cavity formed by the fixed plate 6 and the rotating area. The fixed plate 6 can play a role of limiting and supporting the sliding member 51, preventing the sliding member 51 from excessive deformation, resulting in unsmooth rotation.

[0064] You can continue to read Figure 8As a further solution of this embodiment, a clearance opening 57 for avoiding the rotation axis D53 is formed in the middle of the sliding member 51. After the clearance opening 57 is set, the design of the clearance opening 57 can give the goggles 10 a larger activity space, thereby preventing the setting of the rotation axis D53 from interfering with the operation of the sliding member 51. At the same time;

[0065] In addition, the rotating member 55 is arranged at the movable opening 60 and is arranged coaxially with the jaw guard 11. The rotating member 24 rotates coaxially with the jaw guard 11, which can make its rotation smoother and prevent its running speed from being unstable when it is not arranged coaxially.

[0066] Please refer to Figure 9-10 As a further solution of the utility model, during the riding process, the user needs to open or close the goggles 10 for use. Therefore, no matter whether it is opened or closed, the goggles 10 need to be restricted and fixed to prevent them from loosening in the open or closed state, which affects the user experience. To this end, the utility model is provided with a positioning component 7 on the sliding member 51. The positioning component 7 can position the goggles 10 in the closed or open state. The positioning component 7 includes a slide groove 70 formed on the sliding member 51. The slide groove 70 is provided with a There is a slider 71 that slides with it, and a limiting column 72 is formed on one side of the slider 71. A spring (the spring is not marked in the present invention) is provided at the top of the slide groove 70 to provide downward pressure for the slider 71. An arc-shaped limiting hole 73 is formed on the fixing plate 6, and positioning grooves 74 that cooperate with the limiting column 72 are formed at the lower parts of both ends of the arc-shaped limiting hole 73. When the goggles 10 are closed or opened, the limiting column 72 is located in the corresponding positioning groove 74 to fix the goggles 10. During the rotation of the goggles 10, the limiting column 72 moves in the arc-shaped limiting hole 73.

[0067] Please refer to Figure 12-13As a further solution of the present invention, during the riding process of the user, the jaw guard 11 in the half-helmet state needs to be fixed to prevent the jaw guard 11 from loosening when in the half-helmet state, thereby affecting the user experience. Therefore, a limiting assembly 8 is provided on the fixing plate 6, and the limiting assembly 8 can fix the jaw guard 11 in the half-helmet state. The limiting assembly 8 includes a guide groove 80 formed on the fixing plate 6, and a pressing block 81 is provided on the guide groove 80 to slide up and down with it. A spring (the spring is not marked in the present invention) is provided between the top of the pressing block 81 and the top of the guide groove 80. One side of the pressing block 81 extends outward to form an extension portion 82, and the bottom of the extension portion 82 has a pressing groove 83. A positioning rod 84 cooperating with the pressing groove 83 is formed on the inner side of the jaw guard 11. When the jaw guard 11 is rotated to the half-helmet state, the positioning rod 84 rotates into the pressing groove 83, and the positioning rod 84 is pressed by the pressing groove 83 to limit the jaw guard 11. It should be noted that the jaw guard 11 has a fixing mechanism for locking the jaw guard 11 in the full helmet state. The fixing mechanism is a prior art in the art, and therefore, will not be described in detail in the present invention.

[0068] See also Fig.14 As a further solution of the utility model, an arc-shaped blocking hole 9 is also formed on the fixing plate 6, and a blocking rod 90 cooperating with the arc-shaped blocking hole 9 is provided on the inner side of the jaw guard 11. After the jaw guard 11 is rotated to the full helmet or the half helmet in place, the blocking rod 90 cooperates with the arc-shaped blocking hole 9 to limit the jaw guard 11 from continuing to rotate. Since a large force is sometimes applied during the rotation process, it is necessary to limit the jaw guard 11 in the full helmet and half helmet states to avoid affecting the internal parts. The jaw guard 11 can be restricted by cooperating with the blocking rod 90 and the blocking hole. When the jaw guard 11 runs to the limit state, the blocking rod 90 is restricted by the arc-shaped blocking hole 9, thereby restricting the movement of the jaw guard 11.

[0069] See also Figure 3 As a further solution of the utility model, in the above embodiments, when the jaw guard 11 is in the half-helmet state, the jaw guard 11 is located on the rear end of the helmet body 1. Due to the effect of gravity, the last force point of the jaw guard 11 will be on the rotation axis of the jaw guard 11, which will cause it to be overstressed and easily damaged. Therefore, a limiting groove 14 is provided at the rear end of the helmet body 1. The limiting groove 14 is used to limit the jaw guard 11 and play a supporting role.

[0070] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A helmet comprising a helmet body, goggles and a jaw guard, characterized in that: A rotation area is provided at both the left and right ends of the helmet body, and the two ends of the goggles are rotationally connected to the corresponding rotation area, so that the goggles rotate along the rotation center, thereby realizing opening and closing. The two ends of the jaw guard are also rotationally connected to the corresponding rotation area, and the rotation centers of the left and right ends of the jaw guard and the rotation centers of the two ends of the goggles are non-coaxially arranged, and the left and right ends of the jaw guard clamp the left and right ends of the goggles therein. When the goggles are in the open state, they are an avoidance area, and the jaw guard can pass over the goggles to switch between the full helmet and the half helmet state; When the chin guard is in full helmet state and the goggles are closed, the chin guard switches to half helmet state. The chin guard can lift the goggles to the avoidance area for avoidance, so that the chin guard can pass over the goggles and switch to half helmet state.

2. The helmet according to claim 1, characterized in that A linkage mechanism is provided in the rotating area. When the chin guard is in half-helmet state and the goggles are closed, the chin guard can be switched to the full-helmet state by driving the goggles to rotate to the avoidance area through the linkage mechanism, so that the chin guard can pass over the goggles and switch to the full-helmet state.

3. The helmet according to claim 2, characterized in that: The linkage mechanism includes connecting pieces arranged at both ends of the goggles, the ends of the connecting pieces are rotatably connected to the rotating area, the rotation center of which is the rotation axis A, the rotation center of the jaw guard and the rotating area is the rotation axis B, and the rotation axis B is located to the upper left of the rotation axis A; The linkage mechanism also includes a rotating block arranged at the lower part of the connecting piece, and a rotating piece arranged on the inner side of the end of the jaw guard. A driving block cooperating with the rotating block is provided on one side of the rotating piece. After the jaw guard rotates, the rotating piece is driven to rotate, thereby driving the connecting piece to rotate, and then driving the goggles to rotate to the avoidance area. The jaw guard can then pass over the goggles and reset to the full helmet state.

4. The helmet according to claim 3, characterized in that An arc-shaped groove is formed on the rotating area, a clamping column is formed on the inner side of the connecting piece, and a clamping part is formed at the rear of the arc-shaped groove. When the goggles are rotated upward, the clamping column can be rotated along the arc-shaped groove to the clamping part, and the clamping part clamps the clamping column at the rear end of the arc-shaped groove, thereby fixing the goggles; The clamping part comprises a protruding part arranged at the bottom of the rear section of the arc-shaped groove, and a deformation groove is formed below the protruding part for the protruding part to deform when subjected to force.

5. The helmet according to claim 3, characterized in that: A partition is provided between the connecting piece and the jaw guard, the partition is fixedly connected to the rotating area, an active cavity is formed between the partition and the rotating area for the connecting piece to move when rotating, and an opening is provided in the middle of the partition for the rotating piece to rotate and for the jaw guard to be rotatably connected to the helmet body.

6. The helmet according to claim 5, characterized in that A limiting mechanism is provided at the opening for limiting the position of the jaw guard when it is rotated to a half-helmet state. The limiting mechanism includes a lower protrusion formed on the lower side of the opening and an upper protrusion formed on one side of the rotating part. An elastic groove for the lower protrusion to be deformed by force is formed on the partition plate below the lower protrusion. When the jaw guard is rotated to the half-helmet state, the lower protrusion can limit the upper protrusion to prevent the rotating part from rotating.

7. The helmet according to claim 2, characterized in that: The linkage mechanism includes a guide block arranged in the rotating area, an arc-shaped guide hole is formed on the guide block, a sliding member slidably matched with the arc-shaped guide hole is arranged in the arc-shaped guide hole, and the top of the sliding member is connected to the goggles; after the sliding member is subjected to force, it rotates along the arc-shaped guide hole, and its rotation center is the rotation axis C, and the rotation center of the jaw guard and the rotating area is the rotation axis D, and the rotation axis D is located to the upper left of the rotation axis C; the linkage mechanism also includes a driven block formed on the sliding member, and a rotating member arranged on the inner side of the jaw guard, and an active block formed to match the force-bearing block is arranged on one side of the rotating member; When the jaw guard is in the half-helmet state and the goggles are closed, rotate the jaw guard counterclockwise, the active block will drive the driven block, thereby driving the sliding part to rotate, and then driving the goggles to rotate to the avoidance area, and the jaw guard can pass over the goggles and reset to the full-helmet state.

8. The helmet according to claim 7, characterized in that A fixed plate is arranged in the rotating area, a guide block is arranged inside the fixed plate, a movable cavity for the sliding member to move is formed inside the fixed plate, a movable opening is formed in the fixed plate, and the jaw guard is rotatably connected to the rotating area through the movable opening by means of an axis connection.

9. The helmet according to claim 8, characterized in that A positioning component is provided on the sliding part, and the positioning component can position the goggles in a closed or open state. The positioning component includes a slide groove formed on the sliding part, a slider slidably matched with the slide groove is provided on the slide groove, a limiting column is formed on one side of the slider, a spring is provided on the top of the slide groove to provide downward pressure for the slider, an arc-shaped limiting hole is formed on the fixed plate, and positioning grooves matching with the limiting column are formed at the lower parts of both ends of the arc-shaped limiting hole. After the goggles are closed or opened, the limiting column is located in the corresponding positioning groove to fix the goggles, and during the rotation of the goggles, the limiting column moves in the arc-shaped limiting hole.

10. The helmet according to claim 8, characterized in that A limiting assembly is provided on the fixing plate, which can fix the jaw guard in the half-helmet state. The limiting assembly includes a guide groove formed on the fixing plate, a pressure block which slides up and down with the guide groove is provided on the guide groove, a spring is provided between the top of the pressure block and the top of the guide groove, one side of the pressure block extends outward to form an extension portion, and a pressure groove is provided at the bottom of the extension portion. A positioning rod which cooperates with the pressure groove is formed on the inner side of the jaw guard. When the jaw guard is rotated to the half-helmet state, the positioning rod is rotated into the pressure groove, and the positioning rod is pressed by the pressure groove to limit the jaw guard.

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