CN210652774U

CN210652774U - Head safety protection device, child safety seat and vehicle

Info

Publication number: CN210652774U
Application number: CN201921793819.2U
Authority: CN
Inventors: 刘修平; 邢孔誉
Original assignee: Zhuhai Hongdian Technology Co ltd
Current assignee: Zhuhai Hongdian Technology Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-02
Anticipated expiration: 2029-10-24

Abstract

The utility model relates to a head safety protection device, a child safety seat and a vehicle, wherein the head safety protection device comprises a base body, a first protection device, a second protection device, an inertial body and a flexible part, and the first protection device is arranged at around the user's head and relatively fixed with the user's head; the second protective device is arranged above the user's head and is rotatably mounted on the base body; the inertial body is movably arranged on the second protective device Inside; the first end of the flexible part is connected with the first guard, and the second end is connected with the inertial body; wherein, the second guard has a normal position and a guard position, when the head safety guard moves relative to the ground and the acceleration or When the deceleration exceeds the preset threshold range, the inertial body and the first protective device tighten the flexible member under the action of inertia, and the second protective device moves from the normal position to the protective position under the action of its own inertia and the flexible member to protect the user. head, good safety.

Description

Head safety protection device, child safety seat and vehicle

Technical Field

The utility model relates to a vehicle safety protection technical field especially relates to a head safety device, children's safety seat and vehicle.

Background

When a passenger takes a vehicle and has sudden braking, a forward collision or a backward collision, the body of the passenger wearing the safety belt is restrained by the safety belt to realize small movement displacement, and the head of the passenger is greatly inclined forwards or backwards relative to the body due to lack of proper restraint, so that the neck injury is easily caused, and the safety threat is particularly serious for an infant with a fragile neck.

In some related arts, the movement of the head and neck is restricted by fixing the head and neck of the occupant by a fixed type protection device while restricting the body of the occupant by a seatbelt. In other related art, a headband or helmet is worn by an occupant and a cord is provided between the back edge of the headband or helmet and the seat to achieve forward motion restriction of the head in hard braking or a forward collision.

It is noted that the information disclosed in this background section of the invention is only for enhancement of understanding of the general background of the invention, and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a head safety device, children's safety seat and vehicle improve the guard action to user's head.

In order to achieve the above object, the utility model provides a head safety device, include:

a substrate;

the first protection device is arranged around the head of a user and is fixed relative to the head of the user;

the second protection device is arranged above the head of a user and is rotatably arranged on the base body;

an inertial body movably disposed within the second shielding device; and

the first end of the flexible piece is connected with the first protective device, and the second end of the flexible piece is connected with the inertial body by bypassing the second protective device;

the second protection device is provided with a normal position and a protection position, when the head safety protection device moves relative to the ground and the acceleration or deceleration exceeds a preset threshold range, the inertial body and the first protection device tightly pull the flexible piece under the action of inertia, and the second protection device moves from the normal position to the protection position under the action of self inertia and the pulling action of the flexible piece so as to protect the head of a user.

In some embodiments, the second guard includes an outer cover and a liner disposed on a side of the outer cover adjacent the user, the liner having a slide, the inertial body being disposed within the slide.

In some embodiments, the chute is disposed at a position of the liner that is farther from the head of the user in the front-to-rear direction of the head of the user.

In some embodiments, the rearward end of the chute is located rearward of the center of gravity of the liner in a fore-aft direction of the user's head.

In some embodiments, the upstream end of the chute is provided with a limiting structure for limiting the inertial body before the second guard rotates relative to the base.

In some embodiments, the limiting structure comprises a first groove, and the shape of the first groove is matched with the outer contour of the inertial body.

In some embodiments, the inertial body is a sphere and the first recess is spherical in shape.

In some embodiments, the liner is provided with a passage, the passage is communicated with the slideway, and the flexible piece passes through the passage and enters the slideway.

In some embodiments, the housing is further provided with a first passage, the first passage communicates with the duct, the flexible member passes through the first passage and enters the duct, and the width of the first passage in a direction perpendicular to the extending direction of the flexible member is larger than the diameter of the duct.

In some embodiments, the housing is further provided with a second channel, the second channel is communicated with the first channel, the flexible member passes through the second channel and enters the first channel, and the width of the second channel in the direction perpendicular to the extending direction of the flexible member is larger than that of the first channel.

In some embodiments, a roller is disposed in the first channel, and the flexible member passes around the roller.

In some embodiments, the head safety device further comprises a connecting rod and a rotating connection mechanism, the connecting rod is connected with the second protection device, the connecting rod is rotatably connected with the base body through the rotating connection mechanism, the base body is provided with a first clamping groove and a second clamping groove, the first clamping groove is used for limiting the connecting rod when the second protection device is in a normal position, and the second clamping groove is used for limiting the connecting rod when the second protection device is in a protection position.

In some embodiments, the head safety shield apparatus further comprises a connecting frame, the connecting frame being connected to the second shield apparatus, the first shield apparatus comprising a head band to be worn around the head of the user, the connecting frame comprising a connecting aperture through which the head band passes to enable connection of the first shield apparatus and the second shield apparatus.

In some embodiments, the first guard further comprises a flexible strap connected to the head band, the flexible strap being for protecting a lower half of a user's head, the head band and/or the flexible strap being adjustable in length.

In order to achieve the above object, the present invention further provides a child safety seat, including the above head safety protection device.

In order to achieve the above object, the present invention further provides a vehicle including the above head safety protection device or the above child safety seat.

Based on the above technical solution, the head safety protection device of the present invention includes a flexible member, a first end of the flexible member is connected to a first protection device, a second end of the flexible member is connected to an inertial body disposed in a second protection device, when a vehicle used by a user of the head safety protection device is suddenly braked or collided, the head safety protection device moves relative to the ground and the acceleration or deceleration exceeds a preset threshold range, the second protection device moves from a normal position to a protection position capable of protecting the head of the user under the inertial action, the first protection device and the inertial body also move under the inertial action, the first protection device and the inertial body respectively pull two ends of the flexible member, thereby tensioning the flexible member, and further assisting the second protection device to move to the protection position more rapidly through the flexible member, protect user's head in time, prevent that user's head from taking place excessive displacement, improve security and reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural view of an embodiment of the head safety protection device of the present invention.

Fig. 2 is a schematic structural view of an outer cover in an embodiment of the head safety device of the present invention.

Fig. 3 is a schematic view of the internal structure of the outer cover according to an embodiment of the head safety device of the present invention.

Fig. 4 is a schematic structural view of an inner liner in an embodiment of the head safety shield apparatus of the present invention.

Fig. 5 is a schematic structural view of a connecting frame in an embodiment of the head safety device of the present invention.

Fig. 6 is a schematic view of the inner structure of the outer cover and the inner lining after being assembled according to an embodiment of the head safety device of the present invention.

Fig. 7 is a schematic view of a portion of an inner liner of an embodiment of the head safety shield apparatus of the present invention.

Fig. 8 is a schematic structural view of a slide and a groove in an embodiment of the head safety device of the present invention.

Fig. 9 is a schematic structural view of the head safety device according to an embodiment of the present invention, in which the rolling elements are disposed in the grooves.

Fig. 10 is a schematic view of a connection structure of a first protection device and a second protection device according to an embodiment of the head safety protection device of the present invention.

Figure 11 is an enlarged view of a portion of an inner liner of an embodiment of the head safety shield apparatus of the present invention.

Fig. 12 is a schematic view of a first safety shield apparatus according to an embodiment of the present invention.

Figure 13 is an exploded view of an adjustment mechanism in an embodiment of the head safety shield apparatus of the present invention.

Figure 14 is an assembly view of an adjustment mechanism in an embodiment of the head safety shield apparatus of the present invention.

Fig. 15 is a schematic structural view of a flexible strap according to an embodiment of the head safety shield apparatus of the present invention.

Fig. 16 is a schematic view of an embodiment of the head safety shield apparatus of the present invention, showing an adjustment mechanism mounted on a flexible strap.

Fig. 17 is a schematic half-cut structure view of an embodiment of the head safety shield apparatus according to the present invention, wherein the adjusting mechanism is mounted on the flexible band.

Fig. 18 is a schematic view of a mounting structure of a second safety guard and a base according to an embodiment of the head safety guard of the present invention.

Fig. 19 is a schematic view of a bearing according to an embodiment of the head safety shield apparatus of the present invention.

Fig. 20 is a schematic view of a base member according to an embodiment of the head safety shield apparatus of the present invention.

Fig. 21 is a schematic view of the second head restraint assembly in a normal position in accordance with an embodiment of the present invention.

Figure 22 is a schematic view of a head safety shield apparatus according to an embodiment of the present invention, with the second shield apparatus in a shield position.

Fig. 23 is a schematic structural view of an embodiment of the child safety seat of the present invention.

In the figure:

10. a substrate; 11. a back plate; 12. a headrest; 121. a first card slot; 122. a second card slot;

20. a first guard;

21. a head ring;

22. a flexible band; 221. a first segment; 222. a second section; 223. a first rack; 224. a second rack;

23. an adjustment mechanism; 231. adjusting a knob; 232. a gear; 233. a spring; 234. a locking block; 235. locking teeth; 236. a housing; 237. an outer cover;

30. a second guard;

31. a housing; 311. a first sleeve; 312. a rib;

32. a liner; 321. a slideway; 3211. a first groove; 322. a duct; 323. a first channel; 324. a second channel; 325. a roller; 326. a cover plate; 327. a second groove; 328. a through hole;

40. an inertial body;

50. a flexible member;

60. a first lever; 61. a second sleeve; 62. a second lever;

70. a connecting frame; 71. connecting holes; 72. a frame; 73. a first cross bar; 74. a second cross bar;

80. a bearing assembly; 81. a third sleeve; 82. a rotating shaft; 83. a bearing;

90. a backrest.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention.

The inventor researches and finds that the sensitivity of the protection device in the related art is not very high when the protection device moves from a normal position to a protection position, and sometimes protection delay occurs, so that the protection of a user is influenced, and the use safety is reduced.

In view of the above, the inventor has improved the structure of the head safety protection device to improve the protection effect for the user.

As shown in fig. 1, in an embodiment of the present invention, the head safety protection device includes a base 10, a first protection device 20, a second protection device 30, an inertial body 40 and a flexible member 50, the first protection device 20 is disposed around the head of the user, the first protection device 20 is fixed relative to the head of the user, the second protection device 30 is disposed above the head of the user, the second protection device 30 is rotatably mounted on the base 10, the inertial body 40 is disposed in the second protection device 30, the inertial body 40 can move relative to the second protection device 30, a first end of the flexible member 50 is connected to the first protection device 20, and a second end of the flexible member 50 is connected to the inertial body 40 around the second protection device 30.

Wherein, the second protection device 30 has a normal position and a protection position, when the head safety protection device moves relative to the ground and the acceleration or deceleration exceeds a preset threshold range, the inertial body 40 and the first protection device 20 pull the flexible member 50 under the action of inertia, and the second protection device 30 moves from the normal position to the protection position under the action of self inertia and the pulling action of the flexible member 50, so as to protect the head of the user.

In the above embodiment, the head safety protection device includes the flexible member 50, a first end of the flexible member 50 is connected to the first protection device 20, a second end of the flexible member 50 is connected to the inertial body 40 disposed in the second protection device 30, when a vehicle on which a user using the head safety protection device rides is suddenly braked or collided, the head safety protection device moves relative to the ground and the acceleration or deceleration exceeds a preset threshold range, the second protection device 30 moves from a normal position to a protection position capable of protecting the head of the user under the inertia effect, the first protection device 20 and the inertial body 40 also move under the inertia effect, the first protection device 20 and the inertial body 40 respectively pull two ends of the flexible member 50, thereby tensioning the flexible member 50, and further the flexible member 50 assists the second protection device 30 to move to the protection position more quickly, protect user's head in time, prevent that user's head from taking place excessive displacement, improve security and reliability.

For the scheme that sets up inertial body 40 and inertial body 40's both ends in second protector 30 is the free end, the utility model discloses connect first protector 20 and inertial body 40 through flexible piece 50 in the above-mentioned embodiment, when the both ends of first protector 20 and inertial body 40 taut flexible piece 50 respectively, under the prerequisite that the pulling force size is the same, the pulling force moment that second protector 30 received can increase one time at least, consequently can improve the speed that second protector 30 moved to the guard position from the normality position, improve second protector 30's sensitivity, in order to realize more timely protection, improve the safety in utilization.

The head safety guard described above may be worn on the head of a user, and the head safety guard may be connected to a vehicle on which the user is seated, or may be connected to a component such as a safety seat on the vehicle. The head safety device may also be provided separately, for example as a helmet for the user, when the user is riding a vehicle such as a motorcycle.

The head restraint of the embodiment shown in fig. 1 is adapted to be mounted to a safety seat of a vehicle. In this embodiment, the base body 10 includes a back plate 11 and a headrest 12, the back plate 11 being mountable on a backrest of a safety seat, and the headrest 12 being mounted on the back plate 11.

The mounting height of the headrest 12 on the back plate 11 is adjustable to flexibly adjust the mounting height of the headrest 12 according to the height of a user, so that the headrest 12 is positioned at both sides of the head of the user to protect both sides of the head of the user.

As shown in FIGS. 2-11, the second protection device 30 includes an outer cover 31 and an inner liner 32, and the inner liner 32 is disposed on a side of the outer cover 31 close to the user, i.e., the inner liner 32 is located below the outer cover 31. The outer cover 31 may be made of a hard material to increase the strength of the outer cover 31 and prevent foreign objects from falling down from the top of the user's head to injure the user. The inner liner 32 may be made of a soft material to prevent injury to the top of the user's head when in contact with the user's head.

As shown in fig. 2 and 3, the side of the outer cover 31 adjacent to the user is provided with a plurality of ribs 312. As shown in fig. 4, the inner liner 32 is provided with a plurality of second grooves 327 on a side thereof adjacent to the outer cover 31, and the ribs 312 are fitted into the second grooves 327 when the outer cover 31 and the inner liner 32 are assembled.

Head safety shield apparatus further comprises a connecting frame 70, as shown in fig. 5, wherein connecting frame 70 comprises a frame 72, frame 72 is rectangular, one end of frame 72 is mounted on the inner side of outer cover 31, inner lining 32 is further provided with a through hole 328, and connecting frame 70 passes through hole 328 and is exposed from the side of inner lining 32 close to the user, as shown in fig. 6.

The first cross bar 73 and the second cross bar 74 are provided on the frame 72 of the link frame 70, and the structural strength of the frame 72 can be improved by providing the first cross bar 73 and the second cross bar 74. Meanwhile, a coupling hole 71 is formed between the second cross bar 74 and the frame 72, and the first guard 20 may be coupled to the second guard 30 through the coupling hole 71, as shown in fig. 10.

As shown in fig. 11, the liner 32 is provided with a slide 321, and the inertial body 40 is disposed in the slide 321. The slide 321 extends in the front-rear direction of the head of the user. The length of the slide 321 in the front-rear direction is much longer than that of the inertial body 40 in the front-rear direction.

The inertial body 40 may be a slider having a square shape or the like, or may be a sphere. The outer contour of the inertial body 40 matches the shape of the slide 321.

Further, the slide 321 is disposed at a position of the inner liner 32 farther from the head of the user in the front-rear direction of the head of the user, that is, the slide 321 is disposed at a higher position of the inner liner 32, which facilitates the movement of the inertial body 40 relative to the inner liner 32.

Further, the rearward end of the slide 321 is located rearward of the center of gravity of the liner 32 in the forward-rearward direction of the head of the user. This arrangement ensures that the inertial body 40 can be stably present in the slide 321 before extreme conditions such as sudden braking, collision, etc. occur in the head safety shield.

As shown in fig. 7, the liner 32 further includes a cover plate 326, the cover plate 326 is used to close the top of the slide way 321, and after the inertial body 40 is placed on the slide way 321, the cover plate 326 can be placed on the top of the slide way 321 to prevent the inertial body 40 from sliding out of the slide way 321.

The upstream end of the slide 321 is provided with a limit structure for limiting the inertial body 40 before the second guard 30 rotates relative to the base body 10. Through setting up limit structure, can guarantee the stability of inertial body 40 before the motion more effectively.

As shown in fig. 8, the limiting structure includes a first groove 3211, the shape of the first groove 3211 matches the outer contour of the inertial body 40, the inertial body 40 is placed in the first groove 3211, and the inertial body 40 is limited by the first groove 3211. As shown in fig. 9, to illustrate that the inertial body 40 is placed in the first groove 3211, the inertial body 40 cannot move freely under the restriction of the first groove 3211, and can be separated from the restriction of the first groove 3211 only when a certain external force is applied.

In some embodiments, the inertial body 40 is a sphere and the first groove 3211 is spherical in shape, which facilitates disengagement of the inertial body 40 from the first groove 3211, reducing the possibility of difficulty disengaging the restraint due to the shape of the inertial body 40 and the first groove 3211.

As shown in fig. 11, liner 32 is provided with an aperture 322, aperture 322 is in communication with slide 321, and flexible member 50 passes through aperture 322 into slide 321.

The cross-sectional shape of the tunnel 322 matches the cross-sectional shape of the pliable component 50. For example, flexible element 50 is a steel cable, tunnel 322 has a circular cross-sectional shape, and tunnel 322 has a diameter slightly larger than that of flexible element 50.

The housing 31 is further provided with a first passage 323, the first passage 323 communicates with the duct 322, the flexible element 50 passes through the first passage 323 into the duct 322, and the width of the first passage 323 in a direction perpendicular to the extending direction of the flexible element 50 is larger than the diameter of the duct 322. This has the advantage of avoiding interference between the flexible member 50 and other components of the second guard 30 before entering the tunnel 322, and reducing wear on the flexible member 50.

The housing 31 is further provided with a second passage 324, the second passage 324 communicates with the first passage 323, the flexible member 50 passes through the second passage 324 into the first passage 323, and the width of the second passage 324 in a direction perpendicular to the extending direction of the flexible member 50 is larger than the width of the first passage 323.

By providing the second channel 324, the likelihood of the flexible member 50 being subjected to wear is further reduced.

A roller 325 is disposed in the first channel 323, and the flexible member 50 passes around the roller 325. By providing the roller 325, the friction force on the flexible member 50 can be reduced, and the service life of the flexible member 50 can be prolonged.

As shown in FIG. 12, the first guard 20 includes a head band 21 and a flexible band 22, the head band 21 being made of a hard material, and the head band 21 being wearable around the head of the user. The head band 21 passes through the coupling hole 71 of the coupling frame 70 to achieve the coupling of the head band 21 with the second guard 30.

The flexible belt 22 is connected with the head ring 21, and the flexible belt 22 is arranged on two sides of the head of the user and used for protecting the lower half part of the head of the user, and can be pulled to the chin position of the user during use so as to be matched with the head ring 21 to better restrain the head of the user and prevent the head ring 21 from sliding off. The flexible band 22 may be contacted by the user to maintain relative securement with the user.

The length of the head band 21 and/or the flexible strap 22 is adjustable to be appropriately adjusted according to the head circumference size of the user, improving wearing comfort.

As shown in fig. 12, the flexible belt 22 is provided with an adjusting mechanism 23 for adjusting the length of the fixing ring surrounded by the flexible belt 22.

As shown in fig. 13, the adjustment mechanism 23 includes an adjustment knob 231, a gear 232, a spring 233, a lock block 234, a lock tooth 235, a housing 236, and an outer cover 237.

As shown in fig. 14, the adjusting knob 231 has a circular shape, a through hole is formed at the center thereof, and a plurality of tooth grooves engaged with the gear 232 are formed at the inner side thereof. The spring 233 is arranged between the gear 232 and the lock block 234, the adjusting knob 231 is provided with a lock hole, the lock block 234 is inserted into the lock hole, the lock block 234 is at least partially exposed out of the lock hole, the lock block 234 is at least partially positioned at the inner side of the adjusting knob 231, the lock block 234 is provided with a lock tooth 235, and in a locking state, the lock tooth 235 is inserted into a tooth socket to limit the rotation of the adjusting knob 231; by pressing the lock piece 234, the lock teeth 235 are disengaged from the teeth grooves, so that the regulation of the regulation knob 231 can be released, and by rotating the regulation knob 231, the drive gear 232 can be rotated.

As shown in fig. 15, the flexible band 22 includes a first segment 221 and a second segment 222, one end of the first segment 221 is connected to the head band 21, and the other end is adjacent to the second segment 222, and is provided with a first rack 223. The second section 222 has one end connected to the head ring 21 and the other end adjacent to the first section 221, and is provided with a second rack 224.

Fig. 16 is a schematic view of the adjustment mechanism after assembly. As shown in fig. 17, the first rack 223 and the second rack 224 are engaged with the gear 232, and when the gear 232 rotates, the first segment 221 and the second segment 222 can be driven to relatively close to or relatively far away from each other, so as to adjust the length of the flexible belt 22.

The head band 21 may also be provided with an adjusting mechanism for adjusting the length, and the specific structure of the adjusting mechanism may be the same as or different from that of the adjusting mechanism provided on the flexible belt 22, and will not be described in detail here.

The head safety guard further comprises a connecting rod connected to the second guard 30 and a rotating connection mechanism by which the connecting rod and the outer cover 31 are rotatably connected to the base body 10.

As shown in fig. 18, the rotational connection mechanism includes a bearing assembly 80. As shown in fig. 19, the bearing assembly 80 includes a third sleeve 81, a rotating shaft 82 and bearings 83, the third sleeve 81 is sleeved on the middle portion of the rotating shaft 82, and two ends of the rotating shaft 82 are respectively connected with the inner rings of the two bearings 83.

As shown in fig. 2, the two lateral bottoms of the housing 31 are respectively provided with a first sleeve 311, the connecting rod comprises a first rod 60 and a second rod 62, the top of the first rod 60 is connected with the housing 31, the bottom of the first rod 60 is provided with a second sleeve 61, and the first sleeve 311 and the second sleeve 61 are respectively sleeved outside the two bearings 83 and connected with the outer rings of the bearings 83.

The housing 31 is mounted to the headrest 12, the first rod 60 is positioned at the inner side of the headrest 12, the first sleeve 311 is positioned at the outer side of the headrest 12, and the second rod 62 is connected between the first rod 60 and the housing 31 in the lateral direction. By the bearing assembly 80, resistance to rotation of the housing 31 relative to the headrest 12 may be reduced.

As shown in fig. 20, a first engaging groove 121 and a second engaging groove 122 are disposed on the base 10, both the first engaging groove 121 and the second engaging groove 122 are arc-shaped, the first engaging groove 121 is used for limiting the second rod 62 when the second protection device 30 is in the normal position, and the second engaging groove 122 is used for limiting the second rod 62 when the second protection device 30 is in the protection position.

As shown in FIG. 21, second lever 62 is snapped into first slot 121 with second guard 30 in the normal position, with second guard 30 positioned on top of the user's head.

As shown in FIG. 22, the second rod 62 is snapped into the second snap groove 122 and the second guard 30 is in the guarding position, in which the second guard 30 is positioned in front of the head of the user to protect the head of the user from impact.

As shown in fig. 23, the present invention further provides a child safety seat, which includes the above head safety protection device. The back plate 11 of the head restraint is mounted to the backrest 90 of the seat.

The utility model also provides a vehicle, this vehicle include foretell head safety device or foretell children's safety seat.

The positive technical effects of the head safety protection device in the above embodiments are also applicable to child safety seats and vehicles, and are not described herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the utility model discloses a do not deviate from under the prerequisite of the principle, still can be right the utility model discloses a specific embodiment modifies or carries out the equivalent replacement to some technical features, and these are modified and should be covered with the equivalent replacement in the middle of the technical scheme scope of the utility model.

Claims

1. a head safety protection device, is characterized in that, comprises:

matrix (10);

a first protective device (20) arranged around the user's head and relatively fixed to the user's head;

A second protective device (30) is arranged above the user's head and is rotatably mounted on the base body (10);

an inertial body (40) movably disposed within the second guard (30); and

a flexible member (50), the first end of which is connected with the first guard (20), and the second end of which bypasses the second guard (30) and is connected with the inertial body (40);

Wherein, the second guard (30) has a normal position and a guard position, and when the head safety guard moves relative to the ground and the acceleration or deceleration exceeds a preset threshold range, the inertial body (40) and the first protection device (20) tightens the flexible member (50) under the action of inertia, and the second protection device (30) is pulled from the flexible member (50) from its own inertia and under the pulling action of the flexible member (50). The normal position is moved to the guard position to protect the user's head.

2. The head safety protection device according to claim 1, wherein the second protection device (30) comprises an outer cover (31) and an inner lining (32), and the inner lining (32) is provided at the On the side of the outer cover (31) close to the user, the inner lining (32) is provided with a slideway (321), and the inertial body (40) is arranged in the slideway (321).

3. The head safety protection device according to claim 2, characterized in that, in the front-rear direction of the user's head, the slideway (321) is arranged at the distance of the inner lining (32) The farther position of the user's head.

4. The head safety protection device according to claim 3, characterized in that, in the front-rear direction of the user's head, the rear end of the slideway (321) is located on the inner lining (32) ) behind the center of gravity.

5. The head safety protection device according to claim 2, characterized in that, the upstream end of the slideway (321) is provided with a device for the second protection device (30) relative to the base body (10) A limiting structure for limiting the inertial body (40) before rotation.

6. The head safety protection device according to claim 5, wherein the limiting structure comprises a first groove (3211), and the shape of the first groove (3211) is the same as that of the inertial body (3211). 40) to match the outer contour.

7. The head safety protection device according to claim 6, wherein the inertial body (40) is a sphere, and the shape of the first groove (3211) is a sphere.

8 . The head safety guard according to claim 2 , wherein the inner lining ( 32 ) is provided with a hole ( 322 ), and the hole ( 322 ) communicates with the slide ( 321 ), so that the The flexible member (50) enters the slideway (321) through the hole (322).

9. The head safety protection device according to claim 8, wherein the outer cover (31) is further provided with a first channel (323), the first channel (323) and the hole (322) communication, the flexible member (50) enters the hole (322) through the first channel (323), the first channel (323) is in a direction perpendicular to the extending direction of the flexible member (50) The width is greater than the diameter of the channel (322).

10. The head safety protection device according to claim 9, characterized in that, the outer cover (31) is further provided with a second channel (324), and the second channel (324) is connected to the first channel ( 323) is connected, the flexible member (50) passes through the second passage (324) and enters the first passage (323), and the second passage (323) is perpendicular to the extending direction of the flexible member (50). The width of the channel (324) is greater than the width of the first channel (323).

11. The head safety protection device according to claim 9, wherein a roller (325) is provided in the first channel (323), and the flexible member (50) bypasses the roller (325) .

12. The head safety protection device according to claim 1, characterized in that it further comprises a connecting rod and a rotating connecting mechanism, the connecting rod is connected with the second protective device (30), and the connecting rod passes through the The rotating connection mechanism is rotatably connected to the base body (10), and the base body (10) is provided with a first clamping slot (121) and a second clamping slot (122), and the first clamping slot (121) It is used to limit the connecting rod when the second guard (30) is in the normal position, and the second locking groove (122) is used to limit the position of the second guard (30) to the normal position. The connecting rod is limited when it is in the protective position.

13. The head safety protection device according to claim 1, characterized in that it further comprises a connecting bracket (70), the connecting bracket (70) is connected with the second protection device (30), the first The protective device (20) comprises a headband (21) to be worn around the user's head, the connection frame (70) comprises a connection hole (71), and the headband (21) passes through the connection hole (71) to realize the connection of the first protection device (20) and the second protection device (30).

14. The head safety protection device according to claim 13, characterized in that, the first protection device (20) further comprises a flexible band (22), the flexible band (22) and the head ring (21) ) connection, the flexible band (22) is used to protect the lower half of the user's head, and the length of the headband (21) and/or the flexible band (22) is adjustable.

15. A child safety seat, characterized by comprising the head safety protection device according to any one of claims 1 to 14.

16 . A vehicle, characterized in that, comprising the head safety guard according to any one of claims 1 to 14 or the child safety seat according to claim 15 .