CN215621555U - Vehicle seat safety device and vehicle - Google Patents

Abstract

The utility model discloses a vehicle seat safety device and a vehicle, wherein the vehicle seat safety device comprises an energy absorption mechanism and a locking part, the energy absorption mechanism is arranged in a vehicle body wrapping frame of the vehicle, a buffer space is arranged between the energy absorption mechanism and a seat of the vehicle, the energy absorption mechanism comprises a sleeve and an elastic piece, the elastic piece is arranged in the sleeve, the sleeve is provided with an opening, and the locking part is connected with the elastic piece and the seat; when the seat moves towards the energy absorption mechanism in the buffer space, the locking part can compress the elastic piece towards the bottom direction of the sleeve through the opening; when the seat moves away from the energy absorption mechanism in the buffer space, the elastic restoring force of the elastic piece can push the locking part to return to the initial position. The utility model has the advantage of reducing injury of rear passengers caused by whiplash during rear-end collision.

Description

Vehicle seat safety device and vehicle

Technical Field

The utility model relates to the field of automobile safety, in particular to a seat safety device of a vehicle and the vehicle.

Background

With the continuous increase of automobile reserves in China and the world, automobile collision accidents are continuously increased every year, and in the collision accidents, automobile rear-end collisions can cause irreparable damage to the neck and the head of a person and cause irreparable pain to the mind and body of passengers. More stringent design requirements are placed on the rear cabin structure of the vehicle.

Overview of the whiplash injury process: when a vehicle is collided by rear-end collision, the motion condition of the head and the neck of a human body can be divided into the following three stages:

first stage of whiplash injury: recovery/extension, during the moment of impact, the body has a forward acceleration, the chest of the body moves forward and tends to lift up due to the obstruction of the backrest and the inertia of the head, while the head moves horizontally backwards, resulting in the extension of the lower part of the cervical vertebrae and the appearance of the inverse "S" of the upper flexion, after which the head continues to lean backwards, with the extension of the whole neck.

And (3) performing whiplash injury in the second stage: forward movement, with the headrest, the head is in contact with the headrest and continues to recline, but the presence of the headrest prevents this tendency from continuing, and the head begins to move forward under the rebound action of the headrest. Without the headrest, the head would recline further and neck extension reached a limit. And then reverse motion is initiated.

The third stage of whiplash injury: stretching/bending, after limiting the forward movement beyond the normal position, the head and neck continue to move forward and drive the trunk forward, the chest contacts the safety belt, the human body starts to move forward under the restraint of the safety belt, and at the moment, the neck starts to bend forward and is in a stretching state until the head reaches the limit.

The prior art mainly prevents that front row passenger from receiving the whiplash injury in the car collision process that knocks into back, but is rare to the design that prevents that vehicle back row passenger from receiving the whiplash injury.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that a vehicle in the prior art is injured by whiplash of a rear passenger in a rear-end collision process. Therefore, the utility model provides a vehicle seat safety device and a vehicle, which have the advantage of reducing the injury of rear passengers caused by whiplash during rear-end collision.

To solve the above problems, one embodiment of the present invention provides a seat safety device for a vehicle, including:

the energy absorption mechanism is arranged in a vehicle body wrapping frame of a vehicle, a buffer space is formed between the energy absorption mechanism and a seat of the vehicle, the energy absorption mechanism comprises a sleeve and an elastic piece, the elastic piece is arranged in the sleeve, and the sleeve is provided with an opening;

a locking part connected to the elastic member and the seat;

when the seat moves towards the energy absorption mechanism in the buffer space, the locking part can compress the elastic piece towards the bottom direction of the sleeve through the opening;

when the seat moves away from the energy absorption mechanism in the buffer space, the elastic restoring force of the elastic piece can push the locking part to return to the initial position.

Adopt above-mentioned technical scheme, through setting up energy-absorbing mechanism, and be connected energy-absorbing mechanism and seat in locking portion and the automobile body parcel frame, make after the vehicle takes place to collide with the back, because inertia, the seatback receives and comes from passenger's back impact force backward and when moving towards energy-absorbing mechanism, the seatback is rotatory backward in buffer space around the rotation axis between seatback and the seat base, drive locking portion and energy-absorbing mechanism simultaneously and take place relative motion, locking portion compresses the elastic component towards telescopic bottom direction promptly, this elastic component provides opposite elastic restoring force to locking portion, make passenger's back obtain the buffering to the impact force of seat backward, make the rebound effect of seat headrest to the head reduce simultaneously, with this, seat safety device reaches the effect of energy-absorbing, the injury of collision to passenger's neck and head has been reduced. Therefore, the seat safety device has the advantage of reducing injury caused by whiplash during rear-end collision of passengers in the rear row.

In addition, in the energy-absorbing mechanism of above-mentioned technical scheme located automobile body parcel frame, locking portion was used for connecting seat and energy-absorbing mechanism, need not to change the seat skeleton originally, and simple structure is reliable, can give the better safety guarantee of passenger.

Further, another embodiment of the present invention provides a seat safety apparatus for a vehicle, wherein an end of the locking portion connected to the elastic member is located in the sleeve, and a diameter of the opening is smaller than a diameter of the end of the locking portion to restrict the locking portion from being detached from the sleeve.

Adopt above-mentioned technical scheme, through setting up the sleeve into the diameter that its open-ended diameter is less than the one end of locking portion, make the sleeve play spacing effect to locking portion, after the seat collides automobile body parcel frame, the bounce-back effect transmission of automobile body parcel frame is for the seat, the passenger receives the bounce-back effect of seat and leans forward because of the back, the seat drives locking portion and moves forward simultaneously (seat deviates from the motion of energy-absorbing mechanism in buffer space promptly), the elastic restoring force of elastic component promotes locking portion and gets back to initial position, because telescopic open-ended limiting displacement this moment, the one end restriction with locking portion is in the sleeve, make the one end of locking portion can accurately compress the elastic component once more, reach the effect of continuation energy-absorbing.

Further, another embodiment of the present invention provides a seat safety apparatus for a vehicle, wherein the energy absorbing mechanism further includes an energy absorbing pad disposed between the elastic member and the bottom of the sleeve.

By adopting the technical scheme, the energy absorption pad is arranged between the elastic piece and the bottom of the sleeve, and when the locking part compresses the elastic piece to the limit, the energy absorption pad can further buffer the energy absorption.

Further, another embodiment of the present invention provides a seat safety apparatus for a vehicle, wherein the elastic member is a coil spring, a leaf spring, or a plate spring.

Further, another embodiment of the present invention provides a seat safety apparatus for a vehicle, the seat safety apparatus including two energy absorbing mechanisms arranged in parallel.

By adopting the technical scheme, through the arrangement of the two energy absorption mechanisms, after the rear-end collision of the vehicle occurs, the energy absorption effect of the seat safety device can be increased, and the energy absorption process is more stable.

Further, another embodiment of the present invention provides a vehicle seat safety device, wherein the locking portion is a U-shaped structure, the connecting end of the U-shaped structure is locked in the upper lock of the seat, and two branches of the opening end of the U-shaped structure are respectively connected with the elastic members of the two energy absorbing mechanisms.

Adopt above-mentioned technical scheme, through the locking portion that sets up U type structure to lock its link in the overhead lock of seat, at the in-process that the vehicle took place to collide with the rear-end collision, locking portion is connected with overhead lock all the time, so that locking portion moves along with the seat, is connected with the elastic component of two energy-absorbing mechanisms respectively through two branches with its open end, so that two energy-absorbing mechanisms act on simultaneously, thereby reach better energy-absorbing effect.

Further, another embodiment of the present invention provides a seat safety device for a vehicle, the seat safety device further includes a buffer mechanism, the buffer mechanism is disposed on a side of the vehicle body wrapping frame facing the seat, and the locking portion passes through the buffer mechanism and is connected to the elastic member.

Adopt above-mentioned technical scheme, through set up buffer gear in one side of automobile body parcel frame orientation seat for the seat moves towards energy-absorbing mechanism in buffering space, and when the seat collided on the automobile body parcel frame, buffer gear can reach the effect of buffering to the impact force of seat, in order to reduce the deformation of seat or automobile body parcel frame, and then can reduce the whiplash injury that the back row passenger received at the collision in-process that knocks into the back.

Further, another embodiment of the present invention provides a seat safety device for a vehicle, wherein the cushion mechanism includes a cushion pad and a guide member, the cushion pad is fixedly disposed on a side of the vehicle body wrapping frame facing the seat, and the guide member is disposed between the cushion pad and the locking portion and is sleeved outside the locking portion.

Adopt above-mentioned technical scheme, through setting up the blotter to play the cushioning effect to the impact force of seat, through setting up the guide, with the effect of playing the direction to the locking part, make the locking part can move smoothly in the blotter.

Further, another embodiment of the present invention provides a seat safety apparatus for a vehicle, further comprising a support bracket connected to the body wrap bracket and the sleeve to fix the sleeve in the body wrap bracket.

Adopt above-mentioned technical scheme, through setting up the support frame, can make the sleeve set up in automobile body parcel frame firmly, increase seat safety device's steadiness.

Another embodiment of the present invention provides a vehicle including a seat safety device that employs the seat safety device of the vehicle as above.

Adopt above-mentioned technical scheme, through set up foretell seat safety device in the vehicle for this vehicle takes place to collide with the back in the rear-end, can reduce the whip that the back row passenger received in the collision with the back and beat the injure.

In addition, because the vehicle is provided with foretell seat safety device, seat safety device's energy-absorbing mechanism locates in the automobile body parcel frame, and locking portion connects in the lock of going up of seat, so need not to change the original seat skeleton of vehicle, and when locking portion was lifted off to needs, the lock of unblock was gone up to the lock can. Therefore, the vehicle adopting the seat safety device also has the advantages of simple and reliable structure and capability of providing better safety guarantee for passengers.

Additional features and corresponding advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic cross-sectional view of a vehicle seat safety device according to embodiment 1 of the present invention in a rear-end collision;

fig. 2 is a schematic cross-sectional view of a seat safety device for a vehicle according to embodiment 1 of the present invention in an initial position;

fig. 3 is a schematic perspective view of a vehicle seat safety device provided in embodiment 1 of the present invention, the seat safety device being disposed on a seat and a vehicle body package shelf; moreover, the sleeve of one of the energy absorption mechanisms is a schematic view of a partial section structure;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic side view of a vehicle seat safety device according to embodiment 1 of the present invention, which is disposed on a seat and a vehicle body parcel shelf.

Description of reference numerals:

10. a seat safety device;

100. an energy absorbing mechanism; 110. a sleeve; 111. an opening; 120. an elastic member; 130. an energy absorbing pad;

200. a lock section; 201. one end; 202. a connecting end; 210. branching;

300. a buffer mechanism; 310. a cushion pad; 320. a guide member;

400. a support frame;

50. a seat;

510. a seat back; 520. a seat headrest;

60. automobile body parcel frame.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the utility model will be described in conjunction with the preferred embodiments, it is not intended that the features of the utility model be limited to these embodiments. On the contrary, the intention of the novel description to be incorporated into the embodiments is to cover alternatives or modifications which may be extended in accordance with the appended claims. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The utility model may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1:

referring to fig. 1 to 2, fig. 1 is a schematic cross-sectional view illustrating a vehicle seat safety device according to embodiment 1 of the present invention in a rear-end collision; fig. 2 is a schematic cross-sectional view of a vehicle seat safety device according to embodiment 1 of the present invention in an initial position. It should be noted that the seat in fig. 1 and 2 is only a partial schematic structural diagram, and only a partial structure of the seat back and a structure of the seat headrest are shown.

In the seat safety device 10 for a vehicle according to the embodiment 1 of the present invention, the seat 50 and the vehicle body package bracket 60 are connected, and the seat safety device 10 includes the energy absorbing mechanism 100 and the lock portion 200.

The energy absorbing mechanism 100 is arranged in a vehicle body wrapping frame 60 of a vehicle, a buffering space is formed between the energy absorbing mechanism 100 and a seat 50 of the vehicle, the energy absorbing mechanism 100 comprises a sleeve 110 and an elastic piece 120, the elastic piece 120 is arranged in the sleeve 110, and the sleeve 110 is provided with an opening 111.

The latch portion 200 is coupled to the elastic member 120 and the seat 50. In the present embodiment, the body-covering shelf 60 has an opening at a position corresponding to the locking portion 200 so that the locking portion 200 can be connected to the elastic member 120 through the opening and perform a piston movement in the opening of the body-covering shelf 60.

When the seat 50 moves toward the energy absorbing mechanism 100 in the buffer space, the locking portion 200 can compress the elastic member 120 toward the bottom of the sleeve 110 through the opening 111. That is, as shown in fig. 1, after a rear-end collision of the vehicle, the locking portion 200 is inserted into the opening of the body wrap bracket 60 and compresses the elastic member 120 through the opening 111 of the sleeve 110. In this embodiment, the ability of the seat 50 to move toward the energy absorbing mechanism 100 is determined by the stiffness coefficient of the elastomeric member 120.

When the seat 50 moves away from the energy absorbing mechanism 100 in the buffer space, the elastic restoring force of the elastic member 120 can push the latch portion 200 to return to the initial position. I.e., the initial position of the locking portion 200 as shown in fig. 2.

In the present embodiment, by providing the energy absorbing mechanism 100 and connecting the lock portion 200 to the energy absorbing mechanism 100 and the seat 50 in the vehicle body covering frame 60, after a rear-end collision of the vehicle occurs, due to inertia, as the seat back 510 is moved toward the energy absorbing mechanism 100 by a rearward impact force from the occupant's back, the seat back 510 rotates backward in the buffering space around the rotation axis between the seat back 510 and the seat base, and at the same time, drives the locking portion 200 and the energy absorbing mechanism 100 to move relatively, that is, the latching part 200 compresses the elastic member 120 toward the bottom of the socket 110, and the elastic member 120 provides an opposite elastic restoring force to the latching part 200, so that the impact of the passenger's back against the seat back 510 in the backward direction is buffered, at the same time, the rebound effect of the seat headrest 520 on the head is reduced, so that the seat safety device 10 achieves the energy absorption effect, and the injury of rear-end collision to the neck and the head of a passenger is reduced. Therefore, the seat safety apparatus 10 has an advantage of reducing injury of a rear passenger from whiplash during a rear-end collision.

In addition, the energy absorbing mechanism 100 in the present embodiment is disposed in the vehicle body wrapping frame 60, and the locking portion 200 is used to connect the seat and the energy absorbing mechanism 100, so that the original seat frame does not need to be changed, the structure is simple and reliable, and better safety guarantee can be provided for passengers.

As shown in fig. 2, an end 201 of the locking portion 200 connected to the elastic member 120 is located in the sleeve 110, and a diameter of the opening 111 is smaller than a diameter of the end 201 of the locking portion 200 to restrict the locking portion 200 from being detached from the sleeve 110. In this embodiment, one end 201 of the locking portion 200 protrudes outward along the radial direction of the locking portion 200, and when the seat 50 drives the locking portion 200 to move away from the energy absorbing mechanism 100 in the buffer space to the initial position of the locking portion 200, the protrusion abuts against the opening 111 of the sleeve 110, so as to limit the locking portion 200 from disengaging from the sleeve 110.

In this embodiment, the sleeve 110 is set to have a diameter of the opening 111 smaller than the diameter of the end 201 of the locking portion 200, so that the sleeve 110 has a limiting effect on the locking portion 200, when the seat 50 collides with the body wrap frame 60, the rebounding effect of the body wrap frame 60 is transferred to the seat 50, the passenger leans forward due to the rebounding effect of the seat back 510, meanwhile, the seat 50 drives the locking portion 200 to move forward (i.e., the seat 50 moves away from the energy absorbing mechanism 100 in the buffer space), the elastic restoring force of the elastic member 120 pushes the locking portion 200 to return to the initial position, at this time, due to the limiting effect of the opening 111 of the sleeve 110, the end 201 of the locking portion 200 is limited in the sleeve 110, so that the end 201 of the locking portion 200 can accurately compress the elastic member 120 again, and the effect of continuing energy absorption is achieved.

Further, the energy absorbing mechanism 100 further comprises an energy absorbing pad 130, and the energy absorbing pad 130 is disposed between the elastic member 120 and the bottom of the sleeve 110.

In this embodiment, by providing the energy absorbing pad 130 between the elastic member 120 and the bottom of the sleeve 110, the energy absorbing pad 130 can further absorb energy when the locking portion 200 compresses the elastic member 120 to the limit.

Specifically, the elastic member 120 is a coil spring, a leaf spring, or a plate spring.

Referring to fig. 3 to 4, fig. 3 is a schematic perspective view illustrating a seat safety device of a vehicle, provided in embodiment 1 of the present invention, disposed on a seat and a vehicle body parcel shelf; moreover, the sleeve of one of the energy absorption mechanisms is a schematic view of a partial section structure; fig. 4 is an enlarged view of a portion a in fig. 3.

The seat safety apparatus 10 includes two energy absorbing mechanisms 100 arranged side-by-side.

In the present embodiment, by providing two energy absorbing mechanisms 100 as described above, the energy absorbing action of the seat safety device 10 can be increased and the energy absorbing process can be stabilized even after a rear-end collision of the vehicle occurs.

Further, the locking portion 200 is a U-shaped structure, the connecting end 202 of the U-shaped structure is locked in the upper lock of the seat 50, and the two branches 210 at the opening end of the U-shaped structure are respectively connected with the elastic members 120 of the two energy absorbing mechanisms 100. In the present embodiment, the locking portion 200 and the elastic member 120 may be connected by abutting, welding, or caulking.

In the present embodiment, by providing the locking portion 200 having the U-shaped structure and locking the connecting end 202 thereof in the uplock of the seat 50, the locking portion 200 is always connected to the uplock during a rear-end collision of the vehicle, so that the locking portion 200 moves along with the seat 50, and the two branches 210 at the opening end thereof are respectively connected to the elastic members 120 of the two energy absorbing mechanisms 100, so that the two energy absorbing mechanisms 100 act simultaneously, thereby achieving a better energy absorbing effect.

Referring to fig. 1 and 4, the seat safety device 10 further includes a buffer mechanism 300, the buffer mechanism 300 is disposed on a side of the body wrap 60 facing the seat 50, and the locking portion 200 is connected to the elastic member 120 through the buffer mechanism 300.

In the present embodiment, the buffer mechanism 300 is disposed on the side of the vehicle body wrapping frame 60 facing the seat 50, so that the seat 50 moves toward the energy absorbing mechanism 100 in the buffer space until the seat 50 collides with the vehicle body wrapping frame 60, the buffer mechanism 300 can buffer the impact force of the seat 50, so as to reduce the deformation of the seat 50 or the vehicle body wrapping frame 60, and further reduce the injury of the rear-row passenger due to whiplash in the rear-end collision process.

Specifically, the buffering mechanism 300 includes a cushion 310 and a guide 320, the cushion 310 is fixedly disposed on a side of the body-covering frame 60 facing the seat 50, and the guide 320 is disposed between the cushion 310 and the locking portion 200 and sleeved outside the locking portion 200. In the present embodiment, the cushion pad 310 may be made of rubber, and may be fixed to the seat 50 side of the vehicle body covering bracket 60 by bonding. The material of the guiding member 320 is a material having a wear-resistant function.

In the present embodiment, the cushion pad 310 is provided to absorb the impact force of the seat 50, and the guide 320 is provided to guide the locking portion 200, so that the locking portion 200 can smoothly move in the cushion pad 310.

Referring to fig. 5, fig. 5 is a schematic side view of a vehicle seat safety device provided on a seat and a body parcel shelf in embodiment 1 of the present invention.

Referring to fig. 1 and 5, the seat safety device 10 further includes a support bracket 400, and the support bracket 400 is connected to the body wrap bracket 60 and the sleeve 110 to fix the sleeve 110 in the body wrap bracket 60. In this embodiment, the support frame 400 and the sleeve 110 are connected by welding. It will be appreciated by those skilled in the art that in alternative embodiments, the support frame 400 may be connected to the sleeve 110 by other fixing means, such as clamping. It is sufficient that the sleeve 110 can be firmly set in the body package shelf 60. In the present embodiment, by providing the support frame 400, the sleeve 110 can be stably disposed in the vehicle body wrapping frame 60, and the stability of the seat safety device 10 can be increased.

Example 2:

the embodiment of embodiment 2 of the present invention provides a vehicle including a seat safety device, wherein the seat safety device employs the seat safety device 10 of the vehicle in embodiment 1.

By arranging the seat safety device 10 in the vehicle, after the vehicle has a rear-end collision, whiplash injury of a rear-row passenger in the rear-end collision process can be reduced.

In addition, since the vehicle is provided with the seat safety device 10 according to embodiment 1, the energy absorbing mechanism 100 of the seat safety device 10 is provided in the vehicle body package frame 60, and the lock portion 200 is connected to the lock portion of the seat 50, the original seat frame of the vehicle does not need to be changed, and when the lock portion 200 needs to be removed, the lock portion can be unlocked. Therefore, the vehicle using the seat safety device 10 of embodiment 1 also has the advantages of simple and reliable structure and better safety for the passenger.

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 the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A seat safety apparatus for a vehicle, comprising:

the energy absorption mechanism is arranged in a vehicle body wrapping frame of the vehicle, a buffer space is formed between the energy absorption mechanism and a seat of the vehicle, the energy absorption mechanism comprises a sleeve and an elastic piece, the elastic piece is arranged in the sleeve, and the sleeve is provided with an opening;

a locking portion connected to the elastic member and the seat;

when the seat moves towards the energy absorbing mechanism in the buffer space, the locking part can compress the elastic piece towards the bottom direction of the sleeve through the opening;

when the seat moves away from the energy absorbing mechanism in the buffer space, the elastic restoring force of the elastic piece can push the locking part to return to the initial position.

2. A seat safety apparatus for a vehicle according to claim 1, wherein an end of the locking portion connected to the elastic member is located in the sleeve, and a diameter of the opening is smaller than a diameter of an end of the locking portion to restrict the locking portion from being detached from the sleeve.

3. A seat safety apparatus for a vehicle according to claim 1 or 2, wherein the energy absorbing mechanism further comprises an energy absorbing pad disposed between the elastic member and the bottom of the sleeve.

4. A seat safety apparatus for a vehicle according to claim 1 or 2, wherein the elastic member is a coil spring, a leaf spring or a plate spring.

5. A seat safety arrangement for a vehicle according to claim 1 or claim 2, wherein the seat safety arrangement includes two of the energy absorbing mechanisms arranged side by side.

6. The vehicle seat safety device according to claim 5, wherein the locking portion has a U-shaped structure, the connecting end of the U-shaped structure is locked in the upper lock of the seat, and two branches of the open end of the U-shaped structure are respectively connected to the elastic members of the two energy absorbing mechanisms.

7. The seat safety apparatus for a vehicle according to claim 1, further comprising a buffer mechanism provided on a side of the body package shelf facing the seat, wherein the lock portion is connected to the elastic member through the buffer mechanism.

8. The seat safety apparatus for vehicle according to claim 7, wherein the buffer mechanism includes a buffer pad fixed to a side of the body-covering frame facing the seat, and a guide member positioned between the buffer pad and the locking portion and sleeved outside the locking portion.

9. A seat safety apparatus for a vehicle according to claim 1, further comprising a support bracket connected to the body wrap bracket and the sleeve to secure the sleeve within the body wrap bracket.

10. A vehicle including a seat safety device, characterized in that the seat safety device employs the seat safety device of the vehicle according to any one of claims 1 to 9.

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