CN111775788A - Neck restraints, vehicle seats, child safety seats and vehicles - Google Patents

Abstract

The present disclosure relates to a neck protection device, a vehicle seat, a child safety seat and a vehicle. Neck protection device for protecting the neck of an occupant (1) of a passenger vehicle, comprising: a head-mounted member (30) to be worn on the head of the occupant (1); a safety lock member (50); and a connecting strap assembly (40) connected to the headgear component (30) and movable relative to the safety locking component (50) in both a direction of length extension of the connecting strap assembly (40) and a direction perpendicular to the direction of length extension; wherein the safety locking means (50) is configured to lock the connecting strap assembly (40) when the acceleration or deceleration of the vehicle exceeds a preset threshold range. The embodiment of the disclosure can effectively prevent head and neck injuries during traffic accidents or emergency braking.

Description

Neck restraints, vehicle seats, child safety seats and vehicles

technical field

The present disclosure relates to the field of traffic safety, and in particular, to a neck protection device, a vehicle seat, a child safety seat and a vehicle.

Background technique

With the popularity of motor vehicles, both the incidence and absolute number of traffic accidents are increasing substantially. Common motor vehicle traffic accidents include frontal collisions, side collisions, rear-end collisions, and rollovers. Various traffic accidents and sudden braking during emergency avoidance may cause the occupants in the motor vehicle to be subjected to a strong external impact force. Under the action of the rapid impact force, the occupant's head may nod rapidly forward, forward to the left, forward to the right or backward. This situation is very likely to cause whiplash injuries to the neck of the occupants, which can lead to paralysis or death in severe cases. The child occupants are young, their necks are still developing, and their ability to support and resist bending is relatively weak. Therefore, whiplash injuries are particularly serious for the child occupants.

Whiplash is a bone or soft tissue injury caused by the stretching of the cervical spine due to the relative motion between the head and neck due to the relative motion of the head when the body is rapidly accelerating or decelerating. This injury can lead to permanent high paraplegia, or even life-threatening. In various traffic accidents, the rate of cervical spine injuries is as high as 70%, and in rear-end collisions, the rate of neck whiplash injuries is even higher, and 90% of whiplash injuries occur at low speeds (≤25km/h) .

Whiplash injuries are essentially caused by the inconsistency of movement between the head and neck and the human torso, which may be an acceleration injury or a deceleration injury. The whiplash can come from any direction. The most common protective product in the related art, the airbag, can only protect against deceleration injuries, such as a frontal impact of a car.

In recent years, in order to obtain the Neck Injury Criteria NIC (Neck injurycriteria) score in the NCAP evaluation system, car seat manufacturers try to raise the seat back and tilt the headrest forward to get closer to the head. However, this will lead to a decrease in the comfort of the occupant, and the occupant's head-down position for a long time will increase the degeneration of the cervical intervertebral disc and cause cervical spondylosis.

In some related technologies, a headrest that can bounce forward a certain distance when the car is rear-ended is provided on the car seat, so as to approach or contact the rear side of the occupant's head, thereby preventing the occupant's head from swinging backwards.

SUMMARY OF THE INVENTION

The inventor's research has found that when the headrest of the forward bounce method contacts or approaches the headrest of the passenger, the impact force of the rear-end collision may be superimposed with the impact force of the ejection of the headrest, resulting in a craniocerebral impact injury. In addition, this kind of headrest can only prevent whiplash caused by the impact from the rear, and lack the protection function of the side and front.

In view of this, the present disclosure provides a neck protection device, a vehicle seat, a child safety seat and a vehicle, which can effectively prevent head and neck injuries during traffic accidents or sudden braking.

In one aspect of the present disclosure, there is provided a neck protection device for protecting the neck of an occupant in a vehicle, the neck protection device comprising:

a headgear for being worn on the head of the occupant;

safety locking components; and

a connecting strap assembly, which is connected to the headgear member and is movable relative to the safety locking member in both a lengthwise extending direction of the connecting strap assembly and a direction perpendicular to the lengthwise extending direction;

Wherein, the safety locking component is configured to lock the connecting strap assembly when the acceleration or deceleration of the vehicle exceeds a preset threshold range.

In some embodiments, the strap assembly comprises an integral rigid strap or a multi-articulated rigid strap comprising a plurality of connected rigid strap plate segments, the integral rigid strap or the multi-articulated rigid strap One end is rigidly or movably connected to the headgear.

In some embodiments, the strap assembly includes a flexible strap, one end of the flexible strap is connected to the headgear, and the safety locking member is configured to respond to acceleration or deceleration of the vehicle When the preset threshold range is exceeded, the flexible connecting belt is locked.

In some embodiments, the connecting strap assembly includes:

The rigid belt plate is movable relative to the safety locking member in the longitudinal extension direction of the rigid belt plate and the vertical direction of the length extension direction, and the surface is provided with a braking hole, which can be locked with the safety lock Parts cooperate to lock; and

The flexible connecting belt is connected with the head-wearing part, and is provided with a blocking part matched with the end of the rigid belt plate, which is used for blocking and driving the rigid belt plate to move in the direction of the head-wearing part, and defines the maximum pull-out length of the flexible connecting strap relative to the direction of the safety locking member towards the headgear member;

Wherein, the safety locking component is configured to lock the rigid belt plate when the acceleration or deceleration of the vehicle exceeds a preset threshold range.

or

The rigid belt plate has at least one group of through holes arranged along the width direction of the rigid belt plate, and each group of through holes includes a plurality of through holes arranged along the length direction of the rigid belt plate, and the flexible connection belt includes at least A pull cord, the at least one pull cord respectively passes through each through hole in the at least one group of through holes in sequence.

In some embodiments, the flexible connecting belt is provided with a blocking portion matched with the rigid belt plate, for blocking and pulling the rigid belt plate to move in the direction of the head-wearing member, and to limit the flexibility The maximum travel distance that the connecting strap can be pulled out relative to the rigid strap plate in the direction towards the headgear.

In some embodiments, the connecting strap assembly further includes:

a support member fixedly connected to the end of the rigid strap plate and located on a side of the safety locking member adjacent to the headgear member;

Wherein, the support member has a through hole through which the flexible connecting belt passes and a support surface for supporting the head of the occupant.

In some embodiments, the neck protection device further comprises:

The tensioning member is connected with the flexible connecting belt and is used for maintaining the tensioning state of the flexible connecting belt.

In some embodiments, the tensioning member includes:

an elastic retracting mechanism, fixedly arranged on the safety locking member, the passenger's seat or the frame of the vehicle;

Wherein, an elastic element is provided in the elastic retracting mechanism, and one end of the flexible connecting belt is connected with the elastic element.

In some embodiments, the rigid strap plate includes:

at least two rigid strip segments connected; and

A rotation limiting mechanism, a rotation shaft between adjacent rigid strap segments, configured to limit the rigid strap segment on the side of the safety locking member away from the headgear member only toward the tensioning member fold.

In some embodiments, the safety locking member includes:

a fixing seat for fixing on the seat of the occupant or the frame of the vehicle, and having a cavity for the connecting belt assembly to pass through;

A locking member, disposed on the fixed seat, is configured to move relative to the fixed seat when the acceleration or deceleration of the vehicle exceeds a preset threshold range, and act on the connecting belt assembly to achieve Locking of the connecting strap assembly.

In some embodiments, the locking member has a detent needle, and the detent needle can penetrate into the surface of the connecting strap assembly or into a braking hole provided on the surface of the connecting strap assembly to prevent The connecting strap assembly moves relative to the fixed seat.

In some embodiments, the locking member includes:

inertial body;

a braking part comprising at least two braking needles, fixedly connected to one side of the inertial body adjacent to the fixing seat;

Wherein, the safety locking component further includes an elastic connecting piece connected between the fixing seat and the braking part, and the mass of the inertial body is greater than the sum of the mass of the at least two braking needles, so that When the acceleration or deceleration of the vehicle exceeds a preset threshold range, the inertial body can yaw relative to the fixed seat to drive some of the at least two brake needles to penetrate into the place. The surface of the connecting belt assembly is pierced into a braking hole provided on the surface of the connecting belt assembly to prevent the connecting belt assembly from moving relative to the fixing seat.

In some embodiments, the ends of the at least two brake needles on the side away from the inertial body are configured to be relative to the elastic connecting member along the lengthwise extending direction of the connecting strap assembly when the elastic connecting member is in a normal state. The connection points of the elastic connecting piece on the fixing base are symmetrically located on both sides of the fixing base.

In some embodiments, the safety locking component includes a plurality of locking pieces, and the plurality of locking pieces are arranged at different positions on the fixing base along the vertical direction of the lengthwise extending direction of the connecting strap assembly, And when the connecting belt assembly is located at any moving position in the cavity of the fixing seat, the locking of the connecting belt assembly can be realized.

In some embodiments, the plurality of locking members include an odd number of locking members, and the odd number of locking members includes a central locking member located at the center of the fixed seat and symmetrical with respect to the central locking member and Additional locking elements equally spaced.

In some embodiments, the mount includes:

a base for fixedly connecting with the seat or the frame;

a support frame, which is fixed on the upper part of the base, and forms a cavity with the base for the connecting belt assembly to pass through; and

a casing, connected with the base, and forming an accommodating cavity for accommodating the supporting frame and the locking member;

Wherein, the safety locking component further includes an elastic connecting piece, the locking piece is connected with the supporting frame through the elastic connecting piece, and can move relative to the supporting frame.

In some embodiments, the support frame is in the shape of a circular arc, and the center of the circular arc is located on the side of the support frame close to the head-wearing part.

In some embodiments, the connection position of the locking member and the support frame is located on the center line of the support frame in the width direction.

In some embodiments, the safety locking component further includes:

an electronic acceleration sensor for sensing the acceleration or deceleration signal of the vehicle;

The locking member driving mechanism is used for driving the locking member to move relative to the fixed seat according to the acceleration or deceleration signal, so as to realize the locking of the connecting belt assembly by the locking member.

In some embodiments, the inertial body includes a weight or a gyroscope.

In some embodiments, the surface of the connecting belt assembly is provided with a plurality of braking holes in a honeycomb shape arranged along the length direction of the connecting belt assembly, and each braking hole in the plurality of braking holes The cross-sectional shape is an equilateral hexagon of equal size, and the locking member includes at least two brake pins, and the distance between the at least two brake pins is a positive integer multiple of the distance between two adjacent brake holes.

In one aspect of the present disclosure, there is provided a vehicle seat comprising:

a seat, having a seat back; and

the aforementioned neck protection device;

Wherein, the safety locking part of the neck protection device is arranged on the seat back.

In one aspect of the present disclosure, there is provided a child safety seat comprising the aforementioned neck protection device.

In one aspect of the present disclosure, a vehicle is provided, comprising:

The aforementioned neck protection device; or the aforementioned vehicle seat.

Therefore, according to an embodiment of the present disclosure, a connecting strap assembly connected to the headgear assembly and a safety locking member capable of locking the connecting strap assembly when the acceleration or deceleration of the vehicle exceeds a preset threshold range are provided, and the connecting strap assembly is made Both the length extension direction and the vertical direction of the length extension direction of the connecting belt assembly can be moved, so that the neck protection device can prevent the impact force in more directions, and realize the safety protection effect of the occupant wearing the headgear component in multiple directions. .

Description of drawings

The accompanying drawings, which form a part of the specification, illustrate embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure.

The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, wherein:

FIG. 1 is a schematic diagram of an installation structure of a neck protection device according to some embodiments of the present disclosure on a vehicle seat;

2 and 3 are respectively assembled and exploded schematic views of some embodiments of neck protection devices according to the present disclosure;

Fig. 4(a) and Fig. 4(b) are respectively schematic diagrams of different structures of the locking member in some embodiments of the neck protection device according to the present disclosure;

5 is a schematic structural diagram of a safety locking member in some embodiments of a neck protection device according to the present disclosure;

6-7 are partial structural schematic diagrams of some embodiments of the neck protection device of the present disclosure, respectively;

FIG. 8 is a schematic view of the assembly structure of other embodiments of the neck protection device of the present disclosure;

FIG. 9 is a schematic diagram of the installation structure of other embodiments of the neck protection device of the present disclosure on a vehicle seat;

10-12 are schematic diagrams of the assembled and disassembled structures of some embodiments of the neck protection device of the present disclosure on a vehicle seat, respectively;

Fig. 13 is a partial enlarged schematic diagram in the embodiment of Fig. 10;

Fig. 14(a) and Fig. 14(b) are respectively schematic structural diagrams of some embodiments of the neck protection device of the present disclosure in different states;

15 is a schematic structural diagram of a rigid strap plate in some embodiments of the neck protection device of the present disclosure;

16 and 17 are each an enlarged schematic view of the folded rigid strap section of some embodiments of neck restraints of the present disclosure.

18-19 are schematic diagrams of assembled and disassembled structures of further embodiments of the neck protection device of the present disclosure, respectively;

Fig. 20 is a cross-sectional schematic diagram of the embodiment of Fig. 18 corresponding to the cross-section at the center of the weight;

21 is a schematic structural diagram of some embodiments of the neck protection device of the present disclosure using a cam drive structure to drive the locking member;

FIG. 22 and FIG. 23 are respectively schematic structural diagrams of top and bottom views of some embodiments of the neck protection device of the present disclosure using an electromagnetic coil driving structure to drive the locking member.

It should be understood that the dimensions of the various parts shown in the drawings are not to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components.

Detailed ways

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and in no way limits the disclosure, its application or uses in any way. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that unless specifically stated otherwise, the relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values set forth in these embodiments are to be interpreted as illustrative only and not as limiting.

As used in this disclosure, "first," "second," and similar words do not denote any order, quantity, or importance, but are merely used to distinguish the different parts. "Comprising" or "comprising" and similar words mean that the element preceding the word covers the elements listed after the word, and does not exclude the possibility that other elements are also covered. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In the present disclosure, when a specific device is described as being located between the first device and the second device, there may or may not be an intervening device between the specific device and the first device or the second device. When it is described that a specific device is connected to other devices, the specific device may be directly connected to the other device without intervening devices, or may not be directly connected to the other device but have intervening devices.

All terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general-purpose dictionaries should be construed to have meanings consistent with their meanings in the context of the related art, and not to be construed in an idealized or highly formalized sense, unless explicitly stated herein. Defined like this.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

The inventor's research has found that when the headrest of the forward bounce method contacts or approaches the headrest of the passenger, the impact force of the rear-end collision may be superimposed with the impact force of the ejection of the headrest, resulting in a craniocerebral impact injury. In addition, this kind of headrest can only prevent whiplash caused by the impact from the rear, and lack the protection function of the side and front.

In view of this, the present disclosure provides a neck protection device, a vehicle seat, a child safety seat and a vehicle, which can effectively prevent head and neck injuries during traffic accidents or sudden braking.

As shown in FIG. 1 , it is a schematic diagram of the installation structure of the neck protection device according to some embodiments of the present disclosure on a vehicle seat. Referring to Figure 1, and with reference to Figures 2-7, in some embodiments, a neck protector is used to protect the neck of an occupant 1 in a vehicle. The vehicle in each embodiment of the present disclosure may be a car, a ship, a train, or the like. An occupant can be a driver of the vehicle or a non-driver. In addition, the occupant may be an adult occupant or a child occupant.

Referring to FIGS. 1 and 2 , in some embodiments, a neck restraint includes a headgear member 30 , a safety locking member 50 and a connecting strap assembly 40 . The headgear 30 is to be worn on the head of the occupant 1 . The connecting strap assembly 40 is connected to the headwear member 30 and is movable relative to the safety locking member 50 in both the lengthwise extending direction of the connecting strap assembly 40 and the vertical direction of the lengthwise extending direction. The safety locking member 50 is configured to lock the connection when the acceleration or deceleration of the vehicle (deceleration refers to the acceleration in the opposite direction of movement of the vehicle) exceeds a preset threshold range (eg 5 m/s ² ) The belt assembly 40 is locked. The direction of acceleration here is not limited to the moving direction of the vehicle, but also includes a direction that is at an acute angle with the moving direction of the vehicle. This situation generally corresponds to the vehicle itself increasing the accelerator or being rear-ended forward or sideways. The direction of deceleration is not limited to the opposite direction of the moving direction of the vehicle, but also includes the direction at an obtuse angle with the moving direction of the vehicle. This situation generally corresponds to the braking process of the vehicle itself or the forward or lateral direction of the front. collision.

In FIG. 1 , the neck protection device can be installed on the seat 2 with the headrest 21 , and the occupant 1 can rest on the seat back 22 of the seat 2 and wear the headgear 30 . When the occupant 1 wears the headgear 30 on the head, the connecting strap assembly 40 can move relative to the safety locking member with the movement of the head of the occupant 1 . When the acceleration or deceleration of the vehicle exceeds the preset threshold range due to accidents or sudden braking, the safety locking component can lock the connecting strap assembly 40 , so that the head-wearing component 30 connected to the connecting strap assembly 40 moves. The range is limited, and with the three-point seat belt worn by the occupant, the occupant's head and torso will not have a large relative movement, thereby effectively protecting the occupant's neck from injury. Since the connecting strap assembly 40 is movable relative to the safety locking member 50 in both the length extension direction and the vertical direction of the length extending direction of the connecting strap assembly 40 , the safety locking member can realize the connecting strap assembly 40 in more directions And the safety limiting effect of the head-wearing part 30, so as to effectively prevent the head and neck injuries during traffic accidents or sudden braking, and thus better protect the safety of the occupants.

Referring to FIG. 2 , in some embodiments, the connecting strap assembly 40 may include a flexible connecting strap having one end connected to the headgear 30 . The safety locking member 50 may be configured to lock the flexible connecting strap when the acceleration or deceleration of the vehicle exceeds a predetermined threshold range. When the vehicle is in normal operation, the flexible connecting straps are less restrictive to the headgear 30, thus achieving better head freedom and comfort. In FIG. 2 , when the safety locking member 50 locks a certain position of the flexible connecting strap, the flexible connecting strap can effectively limit the movement of the headgear member 30 relative to the safety locking member 50 under tension. scope.

In FIG. 2 , the headwear member 30 may include a headband 31 on which a strap 32 and a buckle 33 may be provided. When the occupant wears the headband 31, the strap 32 and the buckle 33 can be used to fasten it under the chin of the occupant, so as to ensure that the headband 31 can be stably connected to the head and is not easy to fall off. In addition, a plurality of weight-reducing holes 34 can be distributed in the circumferential direction of the headband 31 to reduce the weight of the headband and improve the comfort of the occupant when wearing it. Referring to FIG. 8 , in other embodiments, the head-wearing component 30 may include a hat 31', and a strap 32 and a buckle 33 may also be provided on the hat 31'.

In some embodiments, the connecting strap assembly 40 may include an integral rigid connecting strap, and one end of the integral rigid connecting strap is rigidly or movably connected to the headgear 30 . When locked, the one-piece rigid connecting strap can limit the forward movement of the head by pulling like a flexible connecting strap, and can also limit the backward movement of the head by pressing. This effectively protects the car from the risk of neck injury when it is rear-ended. In other embodiments, the connecting strap assembly 40 may also include a multi-articulated rigid connecting strap of a plurality of connected rigid strap plate segments. Adjacent ones of the rigid strip segments may be pivotally connected by pivots. One end of the multi-joint rigid connection belt can be rigidly or movably connected with the head-wearing part 30 . Compared with the integral rigid connecting belt, the multi-joint rigid connecting belt has a certain degree of adjustability, and can also protect the neck from the risk of injury when the car is rear-ended.

Referring to FIG. 3 , in some embodiments, the safety locking member 50 includes a holder and a locking member 53 . The fixing seat can be fixed on the seat 2 of the occupant 1 or the frame of the vehicle, and has a cavity for the connecting belt assembly 40 to pass through. For example, in FIG. 1 , the fixed seat may be fixedly mounted above the seat back 22 of the seat 2 . The locking member 53 is disposed on the fixed seat, and is configured to move relative to the fixed seat when the acceleration or deceleration of the vehicle exceeds a preset threshold range, and act on the connecting belt assembly 40 to The locking of the connecting strap assembly 40 is achieved.

In some embodiments, the locking member 53 has at least one detent needle 532 . At least one braking needle 532 can penetrate into the surface of the connecting belt assembly 40 or into the braking hole 41 (refer to FIG. 6 ) provided on the surface of the connecting belt assembly 40 to prevent the connecting belt assembly 40 from opposing move on the fixed seat. The plurality of braking holes may be arranged in an aligned or staggered manner in adjacent rows along the length of the connecting strap assembly 40 on the surface of the connecting strap assembly 40 . In other embodiments, the locking member 53 can also achieve locking through frictional force with the surface of the connecting belt assembly 40 .

Referring to FIGS. 3-6 , in some embodiments, the fixing base includes: a base 51 , a supporting frame 52 and a housing 55 . The base 51 can be fixedly connected to the seat 2 or the frame by means of screws or rivets. The support frame 52 can be fixed on the upper part of the base 51 by screws or rivets, and a cavity for the connecting belt assembly 40 to pass through is formed between the support frame 52 and the base 51 . The housing 55 is connected to the base 51 and forms a accommodating cavity for accommodating the supporting frame 52 and the locking member 53 . The housing 55 may also be provided with an openable maintenance door, and/or a through or transparent observation window for viewing the interior of the housing 55 .

Referring to FIG. 4( a ), the locking member 53 may include an inertial body 531 and a braking portion including at least two braking needles 532 (eg, four central axis-symmetric braking needles, etc.). In FIG. 4( a ), the top of the inertial body 531 is suspended in the natural state (ie, the static state or the uniform motion state), and there is no interference between the yaw and the fixed seat. The inertial body 531 may include a weight.

The braking portion can be fixedly connected to one side of the inertial body 531 adjacent to the fixed seat. The at least two brake needles 532 included in the brake part are preferably perpendicular to the ground in a natural state. Depending on the configuration of the braking portion, in some embodiments, the braking needle may be directly connected to the inertial body. In other embodiments, the braking portion may further include a cylindrical connecting member 533 fixedly connected with each braking needle, and is connected with the inertial body through the connecting member 533 .

The safety locking component 50 further includes an elastic connecting piece 54 connected between the fixed seat and the braking portion, and the mass of the inertial body 531 is greater than the sum of the mass of the at least two braking needles 532 . The elastic connecting member 54 can be a spring or an elastic piece, and can be located in the center of the space enclosed by each braking needle 532 . The locking member 53 can be connected with the supporting frame 52 through the elastic connecting member 54 and can move relative to the supporting frame 52 .

By designing the inertial body 531 with a larger mass, the yaw of the inertial body 531 around the elastic connecting member 54 can be realized when the acceleration or deceleration of the vehicle exceeds the preset threshold range. For example, when the vehicle collides with an object at a high speed, the support frame 52 and the base 51 will decelerate along with the vehicle, while the inertial body 531 will continue to move forward due to the inertial effect, and will be deflected forward under the constraint of the elastic connecting piece 54 . put. With the forward deflection of the inertial body 531 , some of the at least two brake needles 532 are driven to pierce the surface of the connecting belt assembly 40 or pierce the surface of the connecting belt assembly 40 to be disposed on the surface of the connecting belt assembly 40 The braking hole 41 prevents the connecting belt assembly 40 from moving relative to the fixing seat.

After the braking needle pierces the braking hole, the fixed connection between the support frame and the connecting belt assembly is realized through the elastic connecting piece. Correspondingly, when designing the elastic connector, an appropriate tensile yield strength can be selected so as to withstand the designed maximum impact force.

For another example, when the vehicle is rear-ended by another vehicle, the support frame 52 and the base 51 will accelerate forward with the vehicle, while the inertial body 531 maintains the original speed due to the inertial effect, so that under the constraint of the elastic connecting member 54 Implement backward yaw. With the backward deflection of the inertial body 531 , some of the at least two brake needles 532 are driven to pierce the surface of the connecting belt assembly 40 or pierce the surface of the connecting belt assembly 40 to be disposed on the surface of the connecting belt assembly 40 . The braking hole 41 prevents the connecting belt assembly 40 from moving relative to the fixing seat.

When the vehicle moves within the allowable acceleration or deceleration range, the inertial body may also yaw due to inertia. By properly designing the parameters of the inertial body (such as mass) and the parameters of the elastic connector (such as stiffness, material properties, tensile yield strength, spring coil diameter, etc.) After being pierced, it is released from the braking hole under the action of the elastic connecting piece.

Referring to FIG. 4( b ), in some embodiments, the locking member 53 may include an inertial body 531 ′ and a braking portion including at least two braking needles 532 . The inertial body 531 ′ may include a gyroscope, which can perform data collection sensitively, such as collecting the yaw angle and acceleration of the locking member 53 , in addition to the function of a weight. The braking portion may include a disc-shaped connecting piece 533' fixedly connected with each braking needle 532, and is connected with the inertial body 531' through the connecting piece 533'. For the plurality of locking members on the support frame 52, all of the inertial bodies may be heavy weights, or all of them may be gyroscopes, or some of them may be heavy weights, and the other may be gyroscopes. For example, the inertial body of the locking member in the middle position among the plurality of locking members can be a gyroscope, and the inertial body of the other locking members can be weights, which can not only save costs, but also realize the yaw angle and acceleration, etc. data detection.

Considering that an offset collision may occur when the vehicle is traveling, the shape and size of the support frame 52 can be designed to meet the protection of a specific angle range, such as 60 degree, 90 degree or 120 degree angle protection. For the protection angle requirement of 60 degrees or 90 degrees, the support frame can be set to support a straight type, and for a larger protection angle requirement, such as 120 degrees, the support frame 52 can be designed as an arc shape, and the center of the arc shape can be designed It is located on the side of the support frame 52 close to the head-wearing part 30 .

Within the set protection angle range, the connecting belt assembly can adjust its position relative to the support frame along with the movement of the occupant's head, and when an offset collision occurs, the locking member can timely and effectively lock the occupants at the offset angle. The connecting strap assembly realizes the locking. For an ordinary family car, when a 25% offset collision occurs at a collision speed of 64 km/h, the maximum offset angle after 300ms is 31.865 degrees, and this embodiment can satisfy the offset by setting an appropriate protection angle. Set safety lock requirements in the event of a collision.

Referring to FIGS. 2 and 3 , the fixing seat may further include a baffle plate 56 , the baffle plate 56 and the outer casing 55 may together form an accommodation cavity for accommodating the support frame 52 and the locking member 53 , and may also be used for rearward movement of the head of the occupant. Provides support for the neck when leaning against the headrest.

Referring to FIGS. 5 and 6 , in some embodiments, the safety locking member 50 includes a plurality of locking members 53 . A plurality of locking pieces 53 are arranged at different positions on the fixing seat along the vertical direction of the lengthwise extending direction of the connecting belt assembly 40, and any position where the connecting belt assembly 40 is located in the cavity of the fixing seat. The locking of the connecting belt assembly 40 can be achieved when moving the position. In this way, when the connecting belt assembly 40 moves relative to the fixed seat, it can be locked by different locking members 53 .

In order to form a very firm connection between the elastic connecting piece and the braking part including the braking needle, referring to FIG. 5 , in some embodiments, a bisector with the supporting frame 521 may be arranged on the bisector of the arc of the supporting frame 521 . Mounting seat 521 with a vertical surface, such as a circular boss in FIG. 5 . The braking part can also be provided with a circular boss at the center of the plurality of braking needles as a connection base. The elastic connecting member can be a spring, and the two ends of the spring can be respectively connected with the mounting seat 521 and the connecting base on the braking part by means of interference fit.

A through hole that is parallel to the surface of the support frame 521 and extends along the bisector of the arc of the support frame 521 can be provided on the mounting seat 521 and the connection base on the braking portion. When assembling, the end of the spring wire at both ends of the spring can be bent first, and after bending, it overlaps with the center line of the spring, and the length of the bending section of the spring wire is slightly larger than that between the mounting seat 521 and the connecting base on the braking part. through hole length. After the bending section of the spring wire is inserted into the through hole, the end of the spring wire is exposed, and then the mounting seat 521 and the connecting base on the braking part are respectively squeezed into the spring by the elasticity of the spring, so that the inner diameter of the spring is formed to be sleeved on the inner diameter of the spring. The structure of the connection base on the mounting seat 521 and the braking portion can easily ensure the positional relationship of the braking portion relative to the support frame 521 in the assembly structure. Then, a hot-melt electric welding process can be used to spot-weld the exposed ends into mushroom heads, which are respectively integrated with the mounting seat 521 and the through holes of the connecting base on the braking portion.

In other embodiments, the detent portion may include multiple sets of U-shaped detent needles, ie, having two ends and a transverse connecting frame connected to both ends. When assembling the spring and the braking part, the spring wire can also be bent into a circular coil parallel to the axis of the spring and positioned at the center of the spring. Then at least one group of U-shaped brake needles is passed through the circular coil, so that the center of the transverse connecting frame is located in the center of the circular coil, and then the spring and the U-shaped brake needle are plastic-encapsulated as a whole through the injection molding process. The weight and the connecting piece for connecting the weight in the braking part, etc., can also be formed by an injection molding process.

The stable and firm connection structure between the elastic connecting piece and the braking part can ensure that after the inertial body is deflected, the braking needle and the inertial body can be driven to return to the initial position in the natural state reliably and stably under the action of the spring. Thus, it is ensured that the brake needle can lock the connecting belt assembly in a timely and reliable manner in the event of a traffic accident or sudden braking, so as to protect the occupant from injury to the head and neck.

For example, in FIG. 5 , the safety locking member 50 includes five locking members 53 , and the supporting frame 52 of the fixing seat is provided with five mounting seats 521 for mounting the elastic connecting members 54 . A concave structure 523 may be provided on the surface of the support frame 52 on the side close to the base 51 , so as to form a cavity with the surface of the base 51 for the connecting belt assembly 40 to pass through.

The ends 532a and 532b of the at least two brake needles 532 on the side away from the inertial body 531 are configured to be relative to the elastic member 54 along the lengthwise extending direction of the connecting belt assembly 40 when the elastic connecting member 54 is in a normal state The connection points of the connecting piece 54 on the fixing base are symmetrically located on both sides of the fixing base. For at least two brake needles of the same specification, this symmetrical arrangement can prevent the inertial body to one side due to the deviation of the center of gravity from the connection point of the elastic connecting piece on the fixed seat when the elastic connecting piece is in a normal state deflection, thereby affecting the reliability of the locking strap assembly during use.

Further preferably, the connection position of the locking member 53 and the support frame 52 is set on the center line of the support frame 52 in the width direction. For example, the brake member in FIG. 5 has four brake needles 532 , which are arranged symmetrically with respect to the inertial body 531 . When the stopper is connected on the center line of the support frame 52, the four stopper pins can be symmetrically located on the front side and the rear side of the fixing seat, respectively. In this way, no matter the vehicle is subjected to a forward, rearward or lateral impact, there is always the end of the brake needle that can penetrate the surface of the connecting belt assembly downward or penetrate the connecting belt with the deflection of the inertial body. Detent holes 41 are provided on the surface of the assembly 40 .

For the flexible connecting tape with loose surface, the end of the braking needle can directly penetrate between the surface textures of the flexible connecting tape. The flexible connecting tape preferably comprises a high-strength woven tape woven with high-strength nylon yarns. Also, a plurality of braking holes may be closely arranged on the surface of the high-strength braided belt, and at least part of these braking holes may be provided with a reinforcing member for reinforcing the hole wall, such as a reinforcing member fixed on the hole wall. Metal ring to provide sufficient locking pull strength. The inner contour size of the corresponding reinforcement should be slightly larger than the size of the end of the brake needle, so that the brake needle can penetrate into the brake hole smoothly.

In order to allow the locking pieces 53 to lock the connecting belt assembly that moves arbitrarily in the cavity of the fixed seat, it is preferable that the plurality of locking pieces 53 include an odd number of locking pieces. The odd-numbered locking pieces may include a central locking piece located at the center of the fixed seat and other locking pieces symmetrically and equally spaced with respect to the central locking piece. In FIG. 6 , one of the five locking pieces is located in the center of the fixing base, and the other four are symmetrically and equally spaced on both sides of the central locking piece.

Referring to Figure 7, in some embodiments, the connecting strap assembly may include more than two flexible connecting straps. One end of the two or more flexible connecting strips is connected to the head-wearing part, and can move freely along the length direction of any one of the flexible connecting strips and the direction perpendicular to the length direction in the cavity of the fixing seat. In this way, it can be ensured that the brake can lock at least one of the two or more flexible connecting strips in various complicated situations.

As shown in FIG. 9 , it is a schematic diagram of the installation structure of other embodiments of the neck protection device of the present disclosure on a vehicle seat. 9, in some embodiments, the safety locking member 50 in the neck protection device can be fixed above the seat back 22 of the car seat, and the occupant 1 can wear a helmet 31" as a headgear member. In other implementations In an example, the neck protection device further includes a structure connected to the safety locking member 50 and fixedly arranged in the seat back 22 .

Referring to FIGS. 10-14( b ), in some embodiments, the neck restraint further includes a seat support frame 57 . The safety locking member 50 is fixedly disposed above the seat support frame 57 , and the seat support frame 57 is disposed inside the seat back 22 . A side protection plate 58 for protecting both sides of the head is provided on the side of the seat support frame 57 adjacent to the head-wearing member. The seat support frame 57 has the same shape as the side protection plate 58 and can support the side protection plate 58 The lateral support structure 571. The side protection panels 58 include a central solid portion and wing-shaped side panels on the left and right sides of the solid portion. When the occupant sits on the seat, the side protection plate 58 can partially surround the occupant's head and part of the upper torso, so as to achieve support and protection.

In FIG. 11 , the fixing seat of the safety locking member 50 may include a base 51 , a supporting frame 52 and a housing 55 . The casing 55 and the base 51 can enclose a space for accommodating the locking member 53 , the elastic connecting member 54 , the supporting frame 52 and part of the connecting belt assembly 40 , etc., and the casing 55 and the base 51 can be made integrally or separately manufactured and assembled. The support frame 52 may be fixed on the surface of the base 51 . An openable cover 551 can be provided on the rear side of the housing 55 to facilitate maintenance of the safety locking member 50 . An observation window (such as a prism see-through window) may be provided on the cover plate 551 to facilitate observation of the operating state of the safety locking component. The observation window can also be provided at a position outside the cover plate 551 of the casing 55, such as the top of the casing.

Referring to FIGS. 11-17 , in some embodiments, the connecting strap assembly 40 includes a rigid strap plate 42 and a flexible connecting strap 43 . The rigid strip 42 is movable relative to the safety locking member 50 in a longitudinal direction of the rigid strip and in a direction perpendicular to the longitudinal direction. The safety locking member 50 can lock the rigid belt plate 42 when the acceleration or deceleration of the vehicle exceeds a preset threshold range. The flexible connecting belt 43 can also drive the rigid belt plate 42 to move in the vertical direction of the length direction of the rigid belt plate 42 .

Referring to FIGS. 11-15 , in some embodiments, the connecting strap assembly 40 further includes a support member 421 . The support member 421 is fixedly connected with the end of the rigid strap plate 42 and is located on the side of the safety locking member 50 adjacent to the headwear member 30 . The support member 421 has a through hole 423 through which the flexible connection belt 43 passes and a support surface for supporting the head of the occupant 1 . The support surface can provide support for the head from the back of the head. The support member 421 can be made of a flexible material, so as to provide support for the head and at the same time make the contact between the head and the support surface more comfortable. buffer effect. In addition, in order to achieve a good supporting effect, the area of the support member 421 can be larger than the cross-sectional area of the cavity structure on the safety locking member 50 for the rigid belt plate 42 to pass through, so as to prevent the support member 421 from entering or passing through the safety locking member 50 . For example, a slit 553 may be formed between the housing 55 and the base 51 for the rigid strip 42 to pass through. The size of the support member 421 is much larger than the size of the slit 553, so as to limit the movement range of the support member 421 and the rigid belt plate 42 to the rear side.

Referring to FIG. 15 , in some embodiments, the support member 421 may adopt a plate-type structure, and the upper part of the plate-type structure is inclined forward compared with the lower part to adapt to the curve of the head. Correspondingly, in FIG. 12 , a slit 553 may be formed between the housing 55 and the base 51 for the rigid belt plate 42 to pass through, and the outer contour 552 of the housing 55 on the side close to the headgear may be configured such that the upper part is inclined forward. shape.

The surface of the rigid belt plate 42 may be provided with a braking hole 41 ′, which can be locked in cooperation with the safety locking member 50 . The plurality of braking holes 41 ′ may be arranged in a manner of being staggered in adjacent rows on the surface of the rigid belt plate 42 along the length direction of the connecting belt assembly 40 . In other embodiments, the plurality of detent holes may also be arranged in an aligned or other arrangement on the surface of the rigid belt plate 42 . Compared with the braking hole provided on the flexible connecting belt, the braking hole disposed on the surface of the rigid belt plate 42 can form a better bearing effect on the pierced brake needle, avoid obvious deformation of the connecting belt assembly, thereby enhancing Limitation of head movement by connecting strap assemblies.

In order to make the plurality of braking holes 41' more compact with each other, a plurality of braking holes 41' in a honeycomb shape arranged along the length direction of the connecting belt assembly 40 can be provided on the surface of the connecting belt assembly 40. The cross-sectional shape of each braking hole 41' in the plurality of braking holes 41' is an equilateral hexagon of equal size. For the locking member 53 including at least two brake needles 532, the distance between the at least two brake needles 532 is preferably a positive integer multiple of the distance between the adjacent two brake holes 41', such as 1, 2 or 3 times. The spacing of the brake pins here refers to the length of the connecting line projected by the ends of the two brake pins on the connecting belt assembly 40 , and the spacing of the braking holes refers to the length of the connecting line between the hole centers of the two braking holes. In this way, the braking needle 532 in the braking member can penetrate into a certain braking hole on the surface of the rigid belt plate 42 with the greatest probability, so as to avoid the risk of locking failure caused by the failure of the braking needle to enter the braking hole.

In FIGS. 14( a ) and 14 ( b ), the flexible connecting strap 43 is connected with the headgear member 30 , and is provided with a blocking portion 43 a (see FIG. 16 ) matched with the end of the rigid strap plate 42 . The blocking portion 43 a can be used to block and drive the rigid belt plate 42 to move in the direction of the head-wearing member 30 , and confine the flexible connecting strap 43 to face the head-wearing member 30 relative to the safety locking member 50 . The maximum pull-out length in the direction of . In this way, when the head of the occupant moves forward, the flexible connecting belt 43 can be pulled by the head-wearing member 30 to move forward, and the blocking portion 43a on the flexible connecting belt 43 can drive the rigid belt plate 42 to move forward. The maximum pull-out length of the flexible connection belt and the extension length of the rigid belt plate can be determined according to the safety test of the vehicle.

The rigid belt plate 42 has a set range of motion relative to the safety locking member 50. When the rigid belt plate 42 moves to the limit position, the flexible connecting belt 43 can reach the safety locking member 50 toward the safety locking member 50. The maximum pull-out length in the direction of the headgear 30 . In addition, the rigid belt plate 42 can also be moved to the vertical direction of the length direction of the rigid belt plate under the driving of the flexible connecting belt 43 to adjust the lateral position of the rigid belt plate 42 relative to the safety locking member 50 .

To enable the flexible connecting strap 43 to remain in a tensioned state, in some embodiments, the neck restraint may further include a tensioning member. The tensioning member can be connected with the flexible connecting belt 43 for maintaining the tensioning state of the flexible connecting belt. In the embodiment in which the safety locking member 50 is used to lock the flexible connecting strip, the tensioning member may also be suitable for maintaining the tensioned state of the flexible connecting strip.

Referring to FIGS. 12 and 13 , in some embodiments, the tensioning member may include an elastic retraction mechanism 59 . The elastic retracting mechanism 59 can be fixedly arranged on the safety locking member 50 , the seat 2 of the occupant 1 or the frame of the vehicle. For example, in FIG. 13, an elastic retraction mechanism 59 may be secured on the inside of the top of the housing 55 to retract the flexible connection strap 43 upwards. An elastic element can be arranged in the elastic retracting mechanism 59, and one end of the flexible connecting belt 43 can be connected with the elastic element. In this way, when the occupant's head moves backwards, the slack part of the flexible connecting belt 43 will be absorbed by the elastic retracting mechanism 59, so as to prevent the flexible connecting belt in a relaxed state from being unable to generate a pulling force restricting the movement of the head in time when a vehicle accident occurs .

Referring to Figure 12, the rigid strap 42 may include at least two rigid strap segments connected. For example the first rigid strap plate segment 42a and the second rigid strap plate segment 42b shown in Figures 15-17. The first rigid band plate segment 42a and the second rigid band plate segment 42b are connected by a rotating shaft 422, so as to realize the rotational connection between adjacent rigid band plate segments.

At the location of the shaft 422 between adjacent rigid strip segments, a rotation limiting mechanism may also be provided. The rigid belt plate segment on the side of the safety locking member 50 away from the headgear member 30 can be restricted from being folded only toward the tension member by the rotation limiting mechanism. For example, in FIG. 17, the rotation limiting mechanism may include a through hole 443 on the end of the second rigid belt plate section 42b on the side close to the first rigid belt plate section 42a, the through hole 443 may be configured such that one side of the hole wall is provided There are grooves so that the pull cords can be led out of the side grooves so that the second rigid strap section 42b can be turned up relative to the first rigid strap section 42a. However, because the taut pulling rope is blocked by the hole wall on the other side of the through hole 443 without grooves, the second rigid belt plate segment 42b cannot be relative to the first rigid belt plate segment 42a in the direction away from the tensioning member. Flip down.

In FIG. 13 , the second rigid strip section 42b is folded upwards and ends close to the elastic retraction mechanism 59 on the inside of the top of the housing 55 . On the other hand, the first rigid strip section 42a is located on the upper surface of the base 51 . Referring to Figure 14(a), when the occupant's head moves forward, with the movement of the helmet 31" worn by the occupant's head, the flexible connecting belt 43 is driven to move forward, and the blocking portion on the flexible connecting belt 43 can further The supporting member 421 and the first rigid strip section 42a are driven to move to the side of the occupant's head. As the first rigid strip section 42a protrudes forward relative to the housing 55, the second rigid strip section 42b and the coiled up elastic The flexible connecting belt 43 in the retracting mechanism 59 is gradually unfolded relative to the first rigid belt plate section 42a. When the rotation axis between the first rigid belt plate section 42a and the second rigid belt plate section 42b moves to the support frame 52 and the base 51 The second rigid strap plate segment 42b is fully expanded relative to the first rigid strap plate segment 42a when the cavity therebetween.

Referring to FIG. 14(b), as the head of the occupant continues to move forward, the second rigid belt plate segment 42b also protrudes to the front side, at this time, the first rigid belt plate segment 42a and the second rigid belt plate segment 42a can be restricted by the rotation limiting mechanism Relative rotation between belt plate segments 42b. In this way, even when the head is at a position away from the safety locking member 50, when the rearward movement of the second rigid belt plate segment 42b is blocked by the safety locking member 50 due to the rear-end collision of the vehicle, the head of the occupant can be blocked. Under the supporting action of the first rigid band plate segment 42a, the second rigid band plate segment 42b and the support member 421, whiplash injury to the neck caused by a relatively large backward swing is avoided.

Referring to FIGS. 16 and 17 , the rigid belt plate 42 may have at least one group of through holes arranged along the width direction of the rigid belt plate 42 , and each group of through holes includes a plurality of through holes arranged along the length direction of the rigid belt plate 42 441, 442. The flexible connection belt may include at least one pull cord, the at least one pull cord passing through each of the through holes 441 , 442 of the at least one group of through holes in sequence, respectively. For example, the pull cord drawn from the elastic retracting mechanism 59 may first pass through the through hole 441 at one end of the second rigid belt plate section 42b, and then pass through the interior of the second rigid belt plate section 42b, and then pass through the second rigid belt plate section 42b. The through hole 443 at the other end of the segment 42b protrudes therethrough. The drawn-out pull rope is then passed through the through hole 442 at one end of the first rigid belt plate segment 42a, and after passing through the interior of the first rigid belt plate segment 42a, it is connected to the other end of the first rigid belt plate segment 42a from the support The through hole 423 on the component 421 passes through. Two drawstrings can be drawn out from the elastic retracting mechanism 59 , and correspondingly, two sets of through holes can be provided in the width direction of the rigid belt plate 42 , so that the two drawstrings pass through each of the two sets of through holes respectively. The two groups of through holes are preferably arranged on the two sides of the rigid belt plate 42 along the width direction or at positions close to the side sides, and are symmetrical with respect to the rigid belt plate 42 in the width direction, so that the rigid belt plate 42 is more stressed. evenly.

In order to enable the pull rope to pull the rigid belt plate segment, in FIG. 16 , a knot can be provided on the pull rope as a blocking portion 43a. In other embodiments, a blocking portion whose size is larger than the cross-sectional size of the flexible connecting tape may also be formed on the flexible connecting tape by means of bonding or the like. Correspondingly, when designing the size of the through hole on the rigid belt plate, the through hole can be matched with the blocking portion. For example, the size of the through hole at the end of the rigid strip plate can be made smaller than the size of the blocking part, so that the blocking part cannot pass through when it reaches the port position of the through hole, so that the pressing effect of the blocking part on the port position of the through hole can be used. Realize the pulling effect of the flexible connecting belt on the rigid belt plate.

In other embodiments, for multi-segment connected rigid strip segments, the blocking portion 43a may cooperate with a through hole at the end of one of the multiple rigid strip segments. For example, in FIG. 16 , the size of the through holes 441 and 443 on the second rigid strip plate segment 42b is not smaller than the size of the blocking portion 43a (eg, the diameter of the through hole of circular cross-section is not smaller than the diameter of the blocking portion 43a of circular cross-section). ). And the size of the through hole 442 at the end of the first rigid belt plate segment 42a is not smaller than the size of the pull cord, and smaller than the size of the blocking portion 43a (for example, the diameter of the through hole of circular cross-section is smaller than the diameter of the blocking portion 43a of circular cross-section, but not less than the diameter of the pull cord of circular cross-section). In this way, the blocking portion 43a on the pull rope can pass through the second rigid belt plate section 42b and be restricted at the end of the first rigid belt plate section 43a, thereby directly driving the first rigid belt plate section 43a to move forward.

For a rigid strap plate including more than two rigid strap plate segments, by setting an appropriate size of the through hole, the blocking portion of the flexible connecting strap can be able to make contact with the rigid strap on the side closest to the headgear in each rigid strap plate segment. The plate segment is pulled to avoid the problem that some of the rigid band plate segments are rotated and folded around the rotation axis due to pulling other rigid band plate segments on the side away from the head-wearing component and cannot be smoothly pulled forward.

In some embodiments, the rigid strips may have hollow cavities disposed along the length of the rigid strips to accommodate flexible connecting strips having a certain width. A flexible attachment strap can pass through the hollow lumen and be attached to the headgear. One or more flexible connecting belts can be provided as required. The flexible connecting belt can be provided with a blocking portion larger than the cross-sectional dimension of the hollow cavity, so that the rigid belt plate can be driven to move forward through the blocking portion.

As shown in FIG. 18 and FIG. 19 , they are schematic diagrams of assembled and disassembled structures of further embodiments of the neck protection device of the present disclosure, respectively. In some of the embodiments previously shown in Figures 10-17, the neck restraint may be integrated into the car seat. In other embodiments, the neck protection device can also be installed on the car seat as an independent device, and can be integrated with the height-adjustable headrest of the car seat as required.

Referring to FIGS. 18-20 , in some embodiments, the shell 55 and the base 51 can integrally form the shape of the headrest of the car seat, and are mounted on the upper part of the seatback of the seat through the height adjustment rod 511 . The height adjustment rod 511 may include a plurality of discrete positioning portions arranged on the outer contour along the length direction, so as to facilitate the cooperation of the relevant snap structures inside the seat back, so as to realize the adjustment of multiple height positions. A locking member 53 , a supporting frame 52 , an elastic connecting member 54 and an elastic retracting mechanism 59 can be arranged in the cavity enclosed by the casing 55 and the base 51 . For the structure and arrangement of these components, reference may be made to some of the embodiments shown in FIGS. 10-17 , which will not be repeated here.

In order to enable the locking member 53 to lock the connecting belt assembly 40 in time when the acceleration or deceleration of the vehicle exceeds the preset threshold range, the safety locking member 50 can sense the acceleration or deceleration signal of the vehicle through an electronic acceleration sensor. The safety locking component 50 further includes: an electronic acceleration sensor and a locking member driving mechanism. The electronic acceleration sensor is used to sense the acceleration or deceleration signal of the vehicle. The electronic acceleration sensor may include a capacitive acceleration sensor, an inductive acceleration sensor, a strain-type acceleration sensor, a piezoresistive acceleration sensor, a piezoelectric acceleration sensor, a servo-type acceleration sensor, and the like.

The electronic acceleration sensor can be installed on the frame of the vehicle or set on the seat of the vehicle, or it can be an acceleration sensor provided by the vehicle. The locking member driving mechanism can drive the locking member 53 to move relative to the fixed seat according to the acceleration or deceleration signal, so as to realize the locking of the connecting belt assembly 40 by the locking member 53 .

Referring to Figure 21, in some embodiments, the latch drive mechanism may include a cam drive mechanism. The cam driving structure may include a motor and a cam 53a connected with the output shaft of the motor or connected with the output shaft of the motor through a reducer or other transmission mechanism. The electronic acceleration sensor can transmit the sensed acceleration or deceleration signal to the controller, and the controller can control the output torque of the motor connected to the cam 53a, so as to use the outer contour of the cam 53a to squeeze the locking piece to realize the connection of the locking piece Locking of belt assembly 40 . Correspondingly, the locking member 53 may include a plurality of brake needles 532 and a connecting frame 53b fixedly connected with the upper end of each braking needle 532. The movable needle 532 can synchronously penetrate the surface of the connecting belt assembly or the braking hole 41 provided on the surface.

Referring to FIGS. 22 and 23, in other embodiments, the locking member drive mechanism may include a solenoid drive structure. The solenoid drive structure may include a solenoid 53c corresponding to at least a portion of the detent needle in the locking member. The electrical signal output by the electronic acceleration sensor can be used to energize the switch circuit connected with the power supply and the electromagnetic coil 53c through an analog-to-digital converter, or the controller can perform signal processing and control. For example, when the controller receives the acceleration or deceleration signal transmitted by the electronic acceleration sensor, the electromagnetic coil 53c can be controlled to absorb the brake needle 532 . For example, the electromagnetic coil 53c is disposed below the metal brake needle 532, and the electromagnetic coil is used to suck the brake needle 532 downward, so that the brake needle 532 can effectively lock the connecting belt assembly 40.

The various embodiments of the above-mentioned neck protection device may be suitable for use by occupants in various types of vehicles, and are especially suitable for use by occupants in vehicles to protect them from injury. Correspondingly, some embodiments of the present disclosure also provide a vehicle seat, comprising: a seat 2 having a seat back 22 and any of the foregoing embodiments of the neck protection device. The safety locking part 50 of the neck protection device can be fixedly arranged on the seat back 22 in the form of adjustable position or non-adjustable position, so as to realize the integration of the neck protection device and the seat 2 . In some embodiments, the neck protection device can be designed with a protection angle of 120 degrees, and adopts a circular arc-shaped fixing seat to meet the safety protection requirements of the occupant's head and neck when the vehicle encounters an offset collision.

In addition, the aforementioned neck protection device can be used in a child safety seat that can be detached in a vehicle (such as a car, a ship or a train, etc.), so as to protect the child's riding safety. Correspondingly, some embodiments of the present disclosure further provide a child safety seat, which may include any of the foregoing embodiments of the neck protection device. The neck protection device can be integrated with the headrest of the child safety seat, and can be raised and lowered together with the headrest relative to the seat body of the child safety seat. In some embodiments, a protection angle of about 90 degrees can be set, and a linear fixed seat can be used to meet the safety protection requirements of the head and neck of the child occupant when the vehicle encounters an offset collision.

The neck protection device or the vehicle seat of the present disclosure may be suitable for use in a vehicle. Correspondingly, some embodiments of the present disclosure further provide a vehicle, including the aforementioned neck protection device or the aforementioned vehicle integrated with the neck protection device seat.

So far, the various embodiments of the present disclosure have been described in detail. Some details that are well known in the art are not described in order to avoid obscuring the concept of the present disclosure. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

While some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art will appreciate that the above examples are provided for illustration only, and are not intended to limit the scope of the present disclosure. Those skilled in the art should understand that, without departing from the scope and spirit of the present disclosure, the above embodiments can be modified or some technical features can be equivalently replaced. The scope of the present disclosure is defined by the appended claims.

Claims (25)

1. A neck protection device for protecting the neck of an occupant (1) in a vehicle, characterized in that the neck protection device comprises: a head-wearing part (30) for being worn on the head of the occupant (1); a safety locking member (50); and A connecting belt assembly (40), connected with the head-wearing part (30), and relative to the safety locking part (50) in a longitudinal direction of the connecting belt assembly (40) and a direction perpendicular to the length extending direction are movable; Wherein, the safety locking component (50) is configured to lock the connecting strap assembly (40) when the acceleration or deceleration of the vehicle exceeds a preset threshold range. 2. The neck protection device of claim 1, wherein the connecting strap assembly (40) comprises an integral rigid connecting strap or a multi-joint rigid connecting strap comprising a plurality of connected rigid strap plate (42) segments A connecting belt, one end of the integral rigid connecting belt or the multi-joint rigid connecting belt is rigidly connected or movably connected with the head-wearing part (30). 3. The neck protection device according to claim 1, wherein the connecting strap assembly (40) comprises a flexible connecting strap, and one end of the flexible connecting strap is connected with the head-wearing part (30), so that the The safety locking component (50) is configured to lock the flexible connecting belt when the acceleration or deceleration of the vehicle exceeds a preset threshold range. 4. The neck protection device of claim 1, wherein the connecting strap assembly (40) comprises: The rigid belt plate (42) can move relative to the safety locking member (50) in the longitudinal extension direction of the rigid belt plate (42) and in the vertical direction of the longitudinal extension direction, and the surface is provided with a brake holes (41, 41') capable of cooperating with the safety locking member (50) for locking; and A flexible connecting belt, connected to the head-wearing part (30), and provided with a blocking part matched with the end of the rigid belt plate (42), for blocking and driving the rigid belt plate (42) toward the moving in the direction of the headgear part (30), and defining the maximum pull-out length of the flexible connecting strap relative to the safety locking part (50) towards the direction of the headgear part (30); Wherein, the safety locking component (50) is configured to lock the rigid belt plate (42) when the acceleration or deceleration of the vehicle exceeds a preset threshold range. 5. The neck protection device according to claim 4, wherein the rigid band plate (42) has a hollow inner cavity, and the hollow inner cavity is arranged along the length direction of the rigid band plate (42), so that the passing the flexible connecting strip through the hollow lumen; or The rigid band plate (42) has at least one group of through holes arranged along the width direction of the rigid band plate (42), and each group of through holes includes a plurality of through holes arranged along the length direction of the rigid band plate (42). The flexible connection belt includes at least one pull cord, and the at least one pull cord passes through each through hole in the at least one group of through holes in sequence. 6. The neck protection device according to claim 5, characterized in that, the flexible connecting belt is provided with a blocking part matched with the rigid belt plate (42), for blocking and pulling the rigid belt plate (42) move towards the direction of the headgear part (30), and limit the maximum pull-out value of the flexible connecting strap relative to the direction of the safety locking part (50) towards the headgear part (30) Moving distance. 7. The neck protection device according to claim 4, wherein the connecting strap assembly (40) further comprises: a support member (421), fixedly connected with the end of the rigid strap plate (42), and located on the side of the safety locking member (50) adjacent to the head-wearing member (30); Wherein, the support member (421) has a through hole (423) through which the flexible connecting belt passes and a support surface for supporting the head of the occupant (1). 8. The neck protection device of claim 4, further comprising: The tensioning member is connected with the flexible connecting belt and is used for maintaining the tensioning state of the flexible connecting belt. 9. The neck restraint of claim 8, wherein the tensioning member comprises: an elastic retracting mechanism, fixedly arranged on the safety locking member (50), the seat (2) of the occupant (1) or the frame of the vehicle; Wherein, an elastic element is provided in the elastic retracting mechanism, and one end of the flexible connecting belt is connected with the elastic element. 10. The neck protection device of claim 8, wherein the rigid strap plate (42) comprises: at least two rigid strip (42) segments connected; and A rotation limiting mechanism, a rotation shaft between adjacent rigid strap plate (42) segments, configured to limit the rigid strap on the side of the safety locking member (50) away from the headgear member (30) Section (42) can only be folded towards the tensioning member. 11. The neck protection device according to claim 1, wherein the safety locking member (50) comprises: a holder for being fixed on the seat (2) of the occupant (1) or the frame of the vehicle, and having a cavity for the connecting belt assembly (40) to pass through; A locking member (53), disposed on the fixed seat, is configured to move relative to the fixed seat when the acceleration or deceleration of the vehicle exceeds a preset threshold range, and act on the connecting belt assembly (40) to realize the locking of the connecting belt assembly (40). 12. The neck protection device according to claim 11, characterized in that the locking member (53) has a detent needle (532), the detent needle (532) being capable of penetrating the connecting strap assembly (40) or pierce the braking holes (41, 41') provided on the surface of the connecting belt assembly (40) to prevent the connecting belt assembly (40) from moving relative to the fixing seat. 13. The neck protection device according to claim 11, wherein the locking member (53) comprises: inertial body(531, 531'); a braking part comprising at least two braking needles (532) fixedly connected to one side of the inertial body (531, 531') adjacent to the fixing seat; Wherein, the safety locking component (50) further comprises an elastic connecting piece (54) connected between the fixing seat and the braking part, and the mass of the inertial body (531, 531') is greater than that of the The sum of the masses of at least two brake needles (532), so that the inertial body (531, 531') can be offset relative to the fixed seat when the acceleration or deceleration of the vehicle exceeds a preset threshold range. pendulum to drive part of the at least two brake needles (532) to pierce the surface of the connecting belt assembly (40) or pierce into the brakes provided on the surface of the connecting belt assembly (40). moving holes (41, 41') to prevent the connecting belt assembly (40) from moving relative to the fixed seat. 14. The neck protection device according to claim 13, characterized in that, the ends of the at least two brake needles (532) on the side away from the inertial body (531, 531') are configured to be on the side of the When the elastic connecting piece (54) is in a normal state, the connecting point of the elastic connecting piece (54) on the fixing base is symmetrically located on the fixing base along the extending direction of the length of the connecting belt assembly (40). sides. 15. The neck protection device according to claim 11, wherein the safety locking member (50) comprises a plurality of locking members (53), the plurality of locking members (53) being along the The vertical direction of the length extension direction of the connecting belt assembly (40) is arranged at different positions on the fixed seat, and can be moved at any moving position when the connecting belt assembly (40) is located in the cavity of the fixed seat The locking of the connecting strap assembly (40) is achieved. 16. The neck protection device according to claim 15, wherein the plurality of locking pieces (53) comprise an odd number of locking pieces, and the odd number of locking pieces comprise a A central locking piece and other locking pieces symmetrically and equally spaced with respect to the central locking piece. 17. The neck protection device of claim 11, wherein the mount comprises: a base (51) for fixedly connecting with the seat (2) or the frame; a support frame (52), which is fixed on the upper part of the base (51), and forms a cavity with the base (51) for the connecting belt assembly (40) to pass through; and a housing (55), connected with the base (51), and forming an accommodating cavity for accommodating the supporting frame (52) and the locking member (53); Wherein, the safety locking member (50) further comprises an elastic connecting piece (54), and the locking piece (53) is connected with the supporting frame (52) through the elastic connecting piece (54), and can be opposite to the supporting frame (52). move on the support frame (52). 18. The neck protection device according to claim 17, wherein the support frame (52) is in the shape of an arc, and the center of the arc is located at the support frame (52) close to the headgear one side of the part (30). 19. The neck protection device according to claim 17, wherein the connection position of the locking member (53) and the support frame (52) is located at the width direction of the support frame (52) midline. 20. The neck protection device according to claim 11, wherein the safety locking member (50) further comprises: an electronic acceleration sensor for sensing the acceleration or deceleration signal of the vehicle; A locking member driving mechanism for driving the locking member (53) to move relative to the fixed seat according to the acceleration or deceleration signal, so as to realize the effect of the locking member (53) on the connecting belt assembly ( 40) locking. 21. The neck protection device according to claim 13, wherein the inertial body (531, 531') comprises a weight or a gyroscope. 22. The neck protection device according to claim 12 or 13, wherein the surface of the connecting strap assembly (40) is provided with honeycomb-shaped A plurality of braking holes (41'), the cross-sectional shape of each braking hole (41') in the plurality of braking holes (41') is an equilateral hexagon of equal size, and the locking member (53) At least two brake pins (532) are included, and the distance between the at least two brake pins (532) is a positive integer multiple of the distance between two adjacent brake holes (41'). 23. A vehicle seat, comprising: a seat (2) having a seat back (22); and The neck protection device according to any one of claims 1 to 22; Wherein, the safety locking part (50) of the neck protection device is fixedly arranged on the seat back in the form of adjustable position or non-adjustable position. 24. A child safety seat, characterized by comprising: the neck protection device according to any one of claims 1-22. 25. A vehicle comprising: The neck protection device of any one of claims 1 to 22; or The vehicle seat of claim 23 .

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