Rear row frontal collision protection device and vehicle

Abstract

The utility model relates to the field of vehicle safety configuration, and provides a rear-row frontal collision protection device and a vehicle, the rear-row frontal collision protection device comprises a pressing part and a driving unit, the pressing part is arranged in front of a rear-row vehicle seat in a storage state, and the pressing part is plate-shaped or block-shaped; and the driving unit is connected with the pressing part, and is used for driving the pressing part to be changed into the unfolded state from the folded state so as to press the front parts of the shanks of the rear row passengers in the rear row vehicle or be arranged at intervals. According to the scheme, the abutting part used for abutting against the legs of the rear-row passengers is additionally arranged, so that the driving unit can be started to drive the abutting part to press the legs of the rear-row passengers when frontal collision occurs, the rear-row passengers can be limited to dive by limiting forward movement of the shanks, the upper trunks of the rear-row passengers are turned up in an accelerated mode, lumbar vertebra extrusion is relieved, and the safety of the rear-row passengers is improved. The restraining strength of the waistband is weakened, and extrusion on abdominal organs and the chest is relieved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle safety configurations, and particularly to a rear row frontal collision protection device and a vehicle. Background Art

[0002] With the popularization of rear row independent seat technology in passenger vehicles, the comfort problem of rear row occupants has posed new challenges in the field of safety design. Zero-gravity seats can also be set in the rear row. The zero-gravity seats allow rear row occupants to sit in a large-inclination sitting posture. This sitting posture will inevitably cause the rear row occupants to dive downward in a frontal collision accident, thereby causing serious injuries to the lumbar spine and abdominal organs.

[0003] In the prior art, the rear row seats lack effective frontal collision protection devices in design. Traditional safety systems mainly focus on the protection of front row occupants, while the safety design of rear row occupants is relatively insufficient, especially for the special challenges of zero-gravity seats. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a rear row frontal collision protection device and a vehicle to improve the safety of rear row occupants in the vehicle during a collision.

[0005] To achieve the above purpose and other related purposes, the present utility model provides a rear row frontal collision protection device, including:

[0006] A pressing part, which is arranged in front of the rear row vehicle seat in a storage state, and the pressing part is plate-shaped or block-shaped;

[0007] A driving unit, connected to the pressing part, and the driving unit is used to drive the pressing part from the storage state to the unfolded state to press or be spaced in front of the lower legs of the rear row occupants in the vehicle.

[0008] In a specific embodiment of the present utility model, the pressing part is arranged on the rear side of the backrest of the front row seat.

[0009] In a specific embodiment of the present utility model, the pressing part is a seat back plate embedded in the rear side of the backrest of the front row seat.

[0010] In a specific embodiment of the present utility model, the driving unit is arranged on the front side of the pressing part, and the driving unit includes:

[0011] A swing arm, with both ends of the swing arm hinged to the skeleton of the front row seat and the pressing part respectively;

[0012] A connecting rod, with both ends of the connecting rod hinged to the skeleton of the front row seat and the pressing part respectively;

[0013] A driving member, connected to the swing arm and used to drive the swing arm to swing so as to drive the pressing part away from the front row seat.

[0014] In a specific embodiment of the present invention, the driving member includes:

[0015] A push cylinder, fixed or hinged to the frame of the front row seat;

[0016] A push rod, one is coaxially arranged at one end of the push cylinder, and the push rod is pushed by the push cylinder to complete the telescopic action;

[0017] A connecting member, rotatably connecting the push rod and the swing arm.

[0018] In a specific embodiment of the present invention, an elastic energy absorption mechanism is arranged on the front side of the pressing part for hindering the forward movement of the pressing part.

[0019] In a specific embodiment of the present invention, a gas generator is arranged in the push cylinder.

[0020] In a specific embodiment of the present invention, the driving unit simultaneously constitutes the elastic energy absorption mechanism.

[0021] In a specific embodiment of the present invention, the swing arm includes a first section hinged to the frame of the front row seat and a second section hinged to the pressing part. The second section is bent towards the direction close to the front row seat relative to the first section, and an obtuse angle is formed between the first section and the second section.

[0022] The present invention also proposes a vehicle, including the rear row frontal collision protection device as described above.

[0023] The present invention proposes a rear row frontal collision protection device and a vehicle. In the above solution, a pressing part for pressing the legs of the rear row occupants is additionally provided. In this way, when a frontal collision occurs, the driving unit can be activated to drive the pressing part to press the legs of the rear row occupants, so as to limit the forward movement of the calves and then limit the diving of the rear row occupants, enabling the upper torso of the rear row occupants to accelerate and turn up - the lumbar spine compression is relieved, and the restraint strength of the seat belt is weakened - the compression on the abdominal organs and chest is relieved. The traditional safety system mainly focuses on the safety of the front row occupants, while this application is specifically designed for the rear row occupants, especially for the case of using zero - gravity seats. It effectively reduces the diving phenomenon of the occupants by pressing or spacing the front part of the calves of the occupants during a frontal collision, thereby reducing the risk of injury to the lumbar spine and abdominal organs. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a rear-row frontal collision protection device in an embodiment of the present utility model;

[0026] Figure 2 It is a schematic diagram of the working state of a rear-row frontal collision protection device in an embodiment of the present utility model.

[0027] Explanation of reference numerals: 1, skeleton; 10, pressing part; 20, driving unit; 21, swing arm; 22, connecting rod; 23, pushing cylinder; 24, push rod; 25, guide pin; 26, strip-shaped hole; 27, gas generator. Specific embodiments

[0028] The following uses specific examples to illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] It should be noted that the diagrams provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0030] In the design of modern passenger cars, with the introduction of zero-gravity seats, rear-row occupants can adopt a large-angle sitting posture to improve the comfort and experience of long-distance travel. However, in the face of a frontal collision accident, this sitting posture will inevitably cause the rear-row occupants to dive, thus bringing a serious risk of lumbar spine compression injury and abdominal organ damage to the bodies of the rear-row occupants. Traditional restraint systems developed for rear-row occupants based on normal sitting postures, such as seat belt waistbands and seat airbags, have certain limitations when facing the challenges brought by this new sitting posture.

[0031] The current technical methods mainly include the following several:

[0032] Enhance the function of the seat belt waistband: By increasing the restraint strength of the seat belt waistband to limit the forward diving of rear passengers. However, this method may cause excessive squeezing of the lumbar spine of rear passengers during a collision, increasing the risk of lumbar spine injury. At the same time, the excessive action of the seat belt on the abdomen may also lead to an exacerbation of abdominal visceral injuries.

[0033] Application of knee airbags: Try to relieve the forward diving of rear passengers by adding knee airbags. However, since almost the entire body weight of the rear passengers acts on the knee airbags when they impact forward during the diving process, the restraint effect of the airbags is not obvious. In addition, the airbags may cause additional pressure and injury to the legs of rear passengers when deployed.

[0034] Full-wrap airbag system: This system covers the upper body from the head. It can provide good protection in side collisions and other accidents, especially for the upper body of rear passengers. However, the full-wrap airbag cannot effectively solve the problem of forward diving of rear passengers in frontal collisions, so there are still limitations in protecting against lumbar spine squeezing injuries.

[0035] Improve the seat belt design: Some R & D teams try to improve the function of the seat belt by increasing the restraint strength of the seat belt on the waist. However, this method may increase the excessive squeezing of the abdomen of rear passengers, resulting in an increased risk of abdominal visceral injuries.

[0036] Currently, for the injury problems faced by rear passengers in a large-angle sitting posture, the existing technical methods each have their limitations. Effective solutions still need to be continuously studied and innovated to balance the needs between the comfort and safety of rear passengers and further improve the protection level of rear passengers in a vehicle collision.

[0037] As Figure 1 、 2 shown, the present utility model proposes a rear frontal collision protection device applied to a vehicle, including a pressing part 10 and a driving unit 20:

[0038] The pressing part 10 is arranged in front of the rear vehicle seat in a retracted state, and the pressing part 10 is plate-shaped or block-shaped. The pressing part 10 is located in front of the vehicle seat and is in a retracted state usually. These pressing parts 10 can be plate-shaped or block-shaped structures, designed to deploy and provide protection when an accident occurs. During normal driving and riding, the pressing part 10 is located in front of the vehicle seat and is in a retracted state, without causing any inconvenience or impact to rear passengers.

[0039] The driving unit 20 is connected to the pressing part 10, and the driving unit 20 is used to drive the pressing part 10 from the storage state to the deployed state to press or be spaced apart from the front part of the calves of the rear occupants in the back row of the vehicle. The function of the driving unit 20 is to control the pressing part 10 to change from the storage state (such as Figure 2 the solid line position shown in the figure) to the deployed state (such as Figure 2 the dotted line position shown in the figure). Such a driving unit 20 usually adopts a mechanical or electric system to ensure a quick response and deployment of the pressing part 10 in the event of a collision. The driving unit 20 can be a hydraulic pushing mechanism, a pneumatic pushing mechanism, an electric push rod 24 mechanism, etc. The front part of the calves of the rear occupants in the vehicle refers to the part of the legs of the rear occupants that swing without being restricted by the seat and generally includes the knees. The spaced-apart arrangement means that after the pressing part 10 is deployed, it does not contact the calves of the occupants but is still on the path of the forward movement of the calves of the occupants.

[0040] The pressing part 10 can reduce or completely restrict the swing of the calf part in the deployed state. When a vehicle collision occurs, the calf part of the rear occupants often swings due to the collision force or is injured due to the impact. The presence of the pressing part 10 can reduce or completely restrict the swing of the calf part, thereby reducing the additional injuries caused thereby. By restricting the free swing of the calf part, the pressing part 10 can enhance the body stability of the rear occupants during the collision. This helps to reduce the violent movement of the lower body during the collision and further reduces the risk of injury to the spine and other key parts. The design of the pressing part 10 can protect the calf part directionally, especially significantly reducing calf fractures and soft tissue injuries under the action of the collision force.

[0041] The driving unit 20 is communicatively connected to the electronic control unit (ACU). When a frontal collision occurs to the vehicle, the sensor system of the vehicle will detect the collision force and direction. Once a collision is detected, the driving unit 20 will be immediately activated. After the driving unit 20 is started, it will quickly drive the pressing part 10 to change from the storage state to the deployed state.

[0042] Make the pressing part 10 pop out in front of the calves. This process helps to reduce the risk of injury to the calf parts of the rear occupants in the event of a collision. The design of the pressing part 10 not only restricts the forward movement of the calves but also can restrict the diving of the rear occupants. This design helps to reduce the risk of the upper body of the rear occupants accelerating and flipping and the lumbar spine being squeezed. When a collision occurs, this system can also reduce the restraint intensity of the seat belt on the abdominal organs and the chest, thereby alleviating the squeezing received by these areas.

[0043] In a specific embodiment of the present utility model, the pressing portion 10 is provided at the rear side of the backrest of the front row seat. Since the pushing force of the rear row occupants is generally directed towards the backrest of the front row occupants, the pressing portion 10 is provided at this position. This design enhances the overall safety of the rear row occupants. Although the backrest of the front row seat is usually designed for the comfort and support of the front row occupants, by providing the pressing portion 10 at its rear side, the scope of safety protection is effectively extended, protecting the rear row occupants from the adverse effects of a frontal collision.

[0044] In a specific embodiment of the present utility model, the pressing portion 10 is a seat back plate embedded in the rear side of the backrest of the front row seat. The embedded design enables the pressing portion 10 to seamlessly integrate into the front row seat of the vehicle without appearing obtrusive or affecting the overall aesthetic design of the vehicle interior. The embedded design also helps to maximize the use of the space inside the vehicle, avoiding problems such as space waste or unreasonable layout caused by safety devices. This is crucial for the comfort and practicality of the vehicle interior.

[0045] In a specific embodiment of the present utility model, the driving unit 20 is provided at the front side of the pressing portion 10, as Figure 1 shown, the driving unit 20 includes a swing arm 21, a connecting rod 22 and a driving member:

[0046] Both ends of the swing arm 21 are respectively hinged to the frame 1 of the front row seat and the pressing portion 10. Both ends of the swing arm 21 are respectively hinged to the frame 1 of the front row seat and the pressing portion 10. The swing arm 21 here acts like a connecting rod, connecting the main body part of the seat and the pressing portion 10. When a driving force acts on the swing arm 21, it will guide the movement of the seat pressing portion 10 through the hinge points.

[0047] Both ends of the connecting rod 22 are respectively hinged to the frame 1 of the front row seat and the pressing portion 10. Both ends of the connecting rod 22 are also respectively hinged to the frame 1 of the front row seat and the pressing portion 10. The connecting rod 22 and the swing arm 21 together form a three-link mechanism. The function of the three-link mechanism is to provide a stable movement trajectory and mechanical support, enabling the movement of the pressing portion 10 to be precisely controlled and predicted.

[0048] The driving member is connected to the swing arm 21 for driving the swing arm 21 to swing so as to drive the pressing portion 10 away from the front row seat. The driving member can be an electric motor, a hydraulic device or other mechanical devices, and its purpose is to be able to predict and actively adjust the position of the pressing portion 10 before a vehicle collision, minimizing the risk of occupant injury to the greatest extent.

[0049] The driving member includes a push cylinder 23, a push rod 24 and a connecting member.

[0050] The push cylinder 23 is fixed or hinged to the frame 1 of the front row seat. The function of the push cylinder 23 is to transmit force through pressure to drive the push rod 24 to perform telescopic movements.

[0051] One push rod 24 is coaxially arranged at one end of the push cylinder 23. The push rod 24 is pushed by the push cylinder 23 to complete telescopic movements, thereby changing its length.

[0052] The connecting member rotatably connects the push rod 24 and the swing arm 21.

[0053] The push cylinder 23, the push rod 24, the swing arm 21, and the frame 1 of the front row seat form a triangular structure. The push cylinder 23 and the push rod 24 change the position of the other side of the triangle (the side where the swing arm 21 is located) by changing the length of one side of the triangle (the side where the push cylinder 23 and the push rod 24 are located), thereby realizing the swing of the swing arm 21.

[0054] As Figure 2 shown, when the push cylinder 23 is fixed to the frame 1 of the front row seat, the connecting member is the guide pin 25. The swing arm 21 is provided with a strip-shaped hole 26 for the guide pin 25 to be inserted and guided. The length direction of the strip-shaped hole 26 is the same as the length direction of the swing arm 21. The fixedly arranged push cylinder 23 is relatively stable and not likely to generate vibration and abnormal noise.

[0055] When the push cylinder 23 is hinged to the frame 1 of the front row seat, the connecting member is the hinge shaft that hinges the push rod 24 and the swing arm 21. This connection method is simpler and easier to process.

[0056] The push cylinder 23 is the driving force source of the entire mechanism, and it can be a hydraulic cylinder, an electric cylinder, or a pneumatic cylinder.

[0057] When the push cylinder 23 is acted upon by a driving force, the push cylinder 23 starts to work and causes the push rod 24 to telescope. The telescopic movement of the push rod 24 is transmitted to the connected swing arm 21. In this way, the movement of the swing arm 21 drives the pressing portion 10 to move back and forth, realizing the protection of the lower leg part of the rear row occupant.

[0058] In a specific embodiment of the present invention, an elastic energy absorption mechanism for hindering the forward movement of the pressing portion 10 is provided on the front side of the pressing portion 10. This elastic energy absorption mechanism may include the following components:

[0059] Spring system: Springs can be used to provide elasticity. When the pressing portion 10 is subjected to an external impact force, the springs will be compressed to absorb and store energy.

[0060] Damper: In order to control the movement speed and vibration of the pressing portion 10, a damper can be integrated. The damper can reduce the impact force when the pressing portion 10 moves forward by dissipating kinetic energy.

[0061] Deformable materials: Special designed deformable materials such as polymers or metal alloys are used. These materials can undergo reversible or irreversible deformations when subjected to forces, thereby absorbing and releasing energy.

[0062] Buffer structures: Some buffer structures such as foamed plastics or other energy-absorbing materials can also be included in the elastic energy-absorbing mechanism to absorb impact energy and reduce the risk of injury to rear passengers.

[0063] Such as Figure 1 、 2 As shown, a gas generator 27 is provided inside the push cylinder 23. The push cylinder 23 has a cylinder structure, and the gas generator 27 can be gunpowder or gas-generating propellant. The function of the gas generator 27 is to quickly generate a large amount of gas or pressure when needed, thereby driving the piston of the push cylinder 23 to perform a rapid pushing action. Using gunpowder or gas-generating propellant as the gas generator 27 means that it can release a large amount of gas or generate high-pressure gas in a very short time.

[0064] The above-mentioned elastic energy-absorbing mechanism refers to the situation where an additional elastic energy-absorbing mechanism is provided. In a specific preference of this application, the driving unit 20 simultaneously constitutes the elastic energy-absorbing mechanism. The push cylinder 23 of the driving unit 20 is filled with gas and can be compressed, and elastic energy absorption can be achieved during the compression process. By combining the driving unit 20 with the elastic energy-absorbing mechanism, additional increase in the volume and weight of the system can be avoided. Designing the driving unit 20 as a part of the elastic energy-absorbing mechanism can simplify the overall system design and manufacturing process. Since the driving unit 20 and the elastic energy-absorbing mechanism share the structure, the overall efficiency and reliability of the system can be improved. Integrating the driving unit 20 and the elastic energy-absorbing mechanism can reduce the manufacturing and maintenance costs. Sharing components and simplifying the design mean that fewer components need to be purchased and maintained, thus saving costs.

[0065] Such as Figure 2 As shown, the swing arm 21 includes a first section hinged to the frame 1 of the front row seat and a second section hinged to the pressing portion 10. The second section is bent relative to the first section in a direction closer to the front row seat, forming an obtuse angle between the first section and the second section. In this way, in the storage state, the second section of the swing arm 21 can be closer to the frame 1 of the front row seat, thereby reducing the gap between the pressing portion 10 and the frame 1 of the front row seat. By designing the swing arm 21 to be able to be stored more compactly when not in use, especially in a limited space, this structural design of the swing arm 21 can effectively utilize the space and make the pressing portion 10 occupy less space when not in use.

[0066] In a specific embodiment of the present utility model, the pressing portion 10 is made of a soft material. Soft materials generally have good energy absorption performance and can effectively absorb and disperse impacts or pressures. Soft materials can reduce the risk of accidents, especially in parts that need to be contacted by users.

[0067] The present utility model also proposes a vehicle, including the rear row frontal collision protection device as described above.

[0068] In summary, the present utility model proposes a rear row frontal collision protection device and a vehicle. In the above solution, a pressing portion 10 for pressing the legs of the rear row occupants is additionally provided. When a frontal collision occurs, the driving unit 20 can be activated to drive the pressing portion 10 to press the legs of the rear row occupants. In this way, the forward movement of the calves can be restricted, and further the diving of the rear row occupants can be restricted, so that the upper torso of the rear row occupants can be accelerated to turn up - the lumbar spine compression is relieved, and the restraint strength of the seat belt is weakened - the compression on the abdominal organs and chest is relieved. Traditional safety systems mainly focus on the safety of the front row occupants, while this application is specially designed for the rear row occupants, especially for the case of using zero - gravity seats. It effectively reduces the diving phenomenon of the occupants by pressing or spacing the front part of the calves of the occupants, thereby reducing the risk of injury to the lumbar spine and abdominal organs during a frontal collision.

[0069] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

[0070] In the description herein, many specific details are provided, such as examples of components and / or methods, to provide a complete understanding of the embodiments of the present utility model. However, those skilled in the art will recognize that the embodiments of the present utility model can be practiced without one or more of the specific details or by other devices, systems, components, methods, parts, materials, parts, etc. In other cases, well - known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of the embodiments of the present utility model.

[0071] Throughout the specification, the references to "one embodiment", "an embodiment", or "a specific embodiment" mean that the particular features, structures, or characteristics described in connection with the embodiment are included in at least one embodiment of the present utility model and not necessarily in all embodiments. Thus, the appearances of the phrases "in one embodiment", "in an embodiment", or "in a specific embodiment" in various places throughout the specification are not necessarily referring to the same embodiment. Additionally, the particular features, structures, or characteristics of any specific embodiment of the present utility model may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the utility model described and shown herein may be made in accordance with the teachings herein and will be considered part of the spirit and scope of the present utility model.

[0072] It should also be understood that one or more of the elements shown in the drawings may be implemented in a more separated or more integrated manner, or even removed in some cases because they are inoperable or provided because they may be useful for a particular application.

[0073] Furthermore, unless otherwise explicitly specified, any marked arrows in the drawings should be considered exemplary only and not restrictive. Additionally, unless otherwise indicated, the term "or" as used herein generally intends to mean "and / or". In cases where the ability to provide separation or combination is unclear, the combination of components or steps will also be considered to have been specified.

[0074] As used in the description herein and throughout the claims below, unless otherwise indicated, "a", "an", and "the" include plural references. Similarly, as used in the description herein and throughout the claims below, unless otherwise indicated, the meaning of "in" includes "in" and "on".

[0075] The foregoing description of the embodiments shown of the present utility model (including what is described in the abstract of the specification) is not intended to be exhaustive or to limit the present utility model to the precise forms disclosed herein. Although specific embodiments of the present utility model and examples of the present utility model have been described herein for illustrative purposes only, various equivalent modifications will be within the spirit and scope of the present utility model as will be recognized and understood by those skilled in the art. As noted, these modifications can be made to the present utility model in accordance with the foregoing description of the embodiments of the present utility model, and these modifications will be within the spirit and scope of the present utility model.

[0076] This document has generally described systems and methods to facilitate an understanding of the details of the present utility model. In addition, various specific details have been given to provide an overall understanding of the embodiments of the present utility model. However, those skilled in the relevant art will recognize that the embodiments of the present utility model can be practiced without one or more of the specific details, or with other devices, systems, accessories, methods, components, materials, parts, etc. In other cases, well-known structures, materials, and / or operations have not been shown or described in detail to avoid obscuring aspects of the embodiments of the present utility model.

[0077] Therefore, although the present utility model has been described herein with reference to its specific embodiments, modifications, various changes, and substitutions are also within the above disclosure, and it should be understood that in some cases, some features of the present utility model will be employed without corresponding use of other features without departing from the scope and spirit of the claimed utility model. Accordingly, many modifications may be made to adapt a particular environment or material to the essential scope and spirit of the present utility model. The present utility model is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode contemplated for carrying out the present utility model, but the present utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the present utility model will be determined only by the appended claims.

Claims

1. A rear row frontal collision protection device, characterized in that, Comprising: A pressing part which is arranged in front of the rear vehicle seat in a stored state, and the pressing part is plate-shaped or block-shaped; A driving unit connected to the pressing part, and the driving unit is used to drive the pressing part from the stored state to the deployed state to press or be spaced from the front part of the calves of the rear passengers in the rear row of the vehicle.

2. The rear row frontal collision protection device according to claim 1, characterized in that, The pressing part is arranged on the rear side of the backrest of the front seat.

3. The rear row frontal collision protection device according to claim 2, characterized in that, The pressing part is a seat back plate embedded in the rear side of the backrest of the front seat.

4. The rear row frontal collision protection device according to claim 2, wherein, The driving unit is arranged on the front side of the pressing part, and the driving unit includes: A swing arm, with both ends of the swing arm hinged to the frame of the front seat and the pressing part respectively; A connecting rod, with both ends of the connecting rod hinged to the frame of the front seat and the pressing part respectively; A driving member connected to the swing arm for driving the swing arm to swing so as to drive the pressing part away from the front seat.

5. The rear row frontal collision protection device according to claim 4, characterized in that The driving member includes: A pushing cylinder fixed or hinged to the frame of the front seat; A push rod, with one coaxially arranged at one end of the pushing cylinder, and the push rod is pushed by the pushing cylinder to complete the telescopic action; A connecting member rotatably connecting the push rod and the swing arm.

6. The rear row frontal collision protection device according to claim 5, characterized in that, An elastic energy absorption mechanism for hindering the forward movement of the pressing part is arranged on the front side of the pressing part.

7. The rear-row frontal collision protection device according to claim 6, wherein A gas generator is arranged in the pushing cylinder.

8. The rear row frontal collision protection device according to claim 7, characterized in that, The driving unit simultaneously constitutes the elastic energy absorption mechanism.

9. The rear row frontal collision protection device according to claim 4, characterized in that, The swing arm includes a first section hinged to the frame of the front seat and a second section hinged to the pressing part, and the second section is bent towards the front seat relative to the first section to form an obtuse angle between the first section and the second section.

10. A vehicle, characterized in that, Including the rear frontal collision protection device according to any one of claims 1-9.

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