Automobile safety seat energy absorption device based on gradient distribution CNT

Abstract

The invention relates to the technical field of safety seats, in particular to an automobile safety seat energy absorption device based on gradient distribution CNTs, which comprises a seat base, a seat body and a connecting lock catch, straight sliding rails are fixedly arranged on two sides of the interior of the seat base, and sliding tables are slidably arranged on the surfaces of the straight sliding rails; a plurality of damping mechanisms and first reset springs are fixedly arranged on one side of the interior of the seat base, and the rear CNT energy absorption plastic plate and the front CNT energy absorption plastic plate at the two ends of the seat body are in gradient distribution design with the density gradually reduced from the two ends to the middle. According to the design, impact energy can be preferentially absorbed and dispersed in a high-density area according to the distribution characteristics of collision force, the energy is prevented from being excessively concentrated at a certain point, and therefore direct impact of the collision force on passengers is effectively reduced, and the energy absorption efficiency of the seat is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of child safety seats, and particularly to an energy-absorbing device for an automotive child safety seat based on gradient-distributed CNTs. Background Art

[0002] With the rapid development of the automotive industry, cars have become an indispensable means of transportation for people's daily travel. However, the incidence of traffic accidents remains high, posing a serious threat to people's lives and safety. As one of the key devices for protecting passengers' safety, automotive child safety seats have become increasingly important. Although traditional automotive child safety seats can provide protection to a certain extent, they still have many deficiencies in the face of complex and variable collision situations.

[0003] Limitations of Traditional Child Safety Seats

[0004] Traditional automotive child safety seats mainly restrain passengers on the seats through fixed structures to reduce displacement during collisions. However, in high-speed collisions or complex collision scenarios, such fixed seats often cannot effectively absorb collision energy, resulting in passengers being subjected to a large impact force and being easily seriously injured.

[0005] The structure of traditional child safety seats is relatively fixed and difficult to be flexibly adjusted according to factors such as the body shape, weight, and collision direction of passengers, and cannot provide personalized protection for different passengers.

[0006] Traditional child safety seats lack an intelligent response mechanism in design, cannot real-time monitor collision situations and automatically adjust the protection state of the seats, and cannot quickly respond at the moment of collision to minimize the injuries suffered by passengers.

[0007] Current Situation of Collision Energy Absorption Technology

[0008] Currently, common energy-absorbing materials in the field of automotive safety include foam plastics, honeycomb aluminum, etc. Although these materials can absorb collision energy to a certain extent, their energy absorption effect is limited, and they are prone to failure under multiple collisions or high-intensity collisions.

[0009] Some high-end automotive seats use composite materials to improve energy absorption performance, but the distribution of these composite materials is often uniform and cannot be optimized according to the distribution of collision forces, resulting in low energy absorption efficiency.

[0010] Most existing energy-absorbing devices can only provide protection in a single direction and have insufficient ability to handle multi-directional collisions, and cannot comprehensively protect the safety of passengers.

[0011] Application of Intelligent Control Technology in the Field of Automotive Safety

[0012] With the continuous development of sensor technology and microprocessor technology, the application of intelligent control technology in the field of automotive safety has gradually increased. For example, some cars are equipped with collision warning systems and automatic braking systems, which can take measures to reduce the possibility of collision or lower the collision speed before a collision occurs.

[0013] However, these intelligent control technologies mainly focus on the active safety of vehicles, and there are relatively few passive safety protection measures for passengers. In the field of automotive safety seats, the application of intelligent control technology is still in its infancy and has not yet formed a mature technical system.

[0014] Demand for new automotive safety seats

[0015] With the continuous improvement of people's requirements for automotive safety performance, the market's demand for new automotive safety seats is becoming increasingly urgent. New automotive safety seats need to have higher energy absorption capacity and be able to provide comprehensive protection for passengers in various collision scenarios.

[0016] New automotive safety seats need to be able to adjust the protection state in real time according to the individual differences of passengers and collision situations to achieve intelligent passive safety protection.

[0017] New automotive safety seats need to adopt advanced materials and structural designs to improve energy absorption efficiency, while reducing the weight and cost of the seats to meet the requirements of automotive lightweight and economy.

[0018] Therefore, an energy absorption device for automotive safety seats based on gradient distribution CNT is needed to improve the above problems. Summary of the invention

[0019] The purpose of the present invention is to provide an energy absorption device for automotive safety seats based on gradient distribution CNT to solve the problems raised in the above background technology.

[0020] To achieve the above purpose, the present invention provides the following technical solutions:

[0021] An energy absorption device for automotive safety seats based on gradient distribution CNT, including a seat base, a seat body, and a connection lock. On both sides inside the seat base, straight sliding rails are fixedly provided. A sliding table is slidably provided on the surface of the straight sliding rails. On one side inside the seat base, a number of damping mechanisms and a first return spring are fixedly provided. The other ends of the damping mechanisms and the first return spring are fixedly connected to the sliding table. On the surface of the seat base, a second chute is provided corresponding to one side of the damping mechanism. A stop block is fixedly provided on one side of the seat base, and the stop block is in close contact with the other side of the sliding table;

[0022] The rear CNT energy absorbing plastic plate and the front CNT energy absorbing plastic plate are fixedly provided at both ends of the seat body. The composite material layers of the rear CNT energy absorbing plastic plate and the front CNT energy absorbing plastic plate on both sides of the seat body are distributed in a gradient with high density at both ends of the seat body and gradually decreasing toward the middle of the seat body.

[0023] As a preferred solution of the present invention, an annular slide rail is fixedly provided inside the slide table, a plurality of sliding blocks are slidably provided on the surface of the annular slide rail, and a turntable is fixedly provided on the upper end of the sliding block.

[0024] As a preferred solution of the present invention, arc-shaped slide rails are fixedly provided on both sides of the upper end of the turntable, and the bottom of the seat body is slidably arranged on the surface of the arc-shaped slide rails through an arc-shaped slide groove.

[0025] As a preferred solution of the present invention, a motor is fixedly provided inside the turntable, a gear is provided at the output end of the motor, an arc-shaped meshing groove is provided at the bottom of the seat body, and the arc-shaped meshing groove is meshedly connected with the gear.

[0026] As a preferred solution of the present invention, the bottom of the seat body is arranged in an arc shape, and the center of the arc of the bottom of the seat body is the same as the arc-shaped slide rail and the arc-shaped engagement groove.

[0027] As a preferred solution of the present invention, a slide groove is provided on the surface of the seat base, a sliding connecting block is slidably provided inside the slide groove, a push block is fixed on the upper end of the sliding connecting block, and an insertion rod and two return springs are fixed on both sides of the sliding connecting block.

[0028] As a preferred solution of the present invention, sockets are provided on both sides of the turntable, and the insertion rods are plug-connected with the sockets.

[0029] As a preferred solution of the present invention, an ARM microprocessor and a battery are fixed inside the seat base, an inertial sensor is fixed inside the seat body, the inertial sensor model is TMM55E-PMH010 inertial sensor, and the inertial sensor and the motor are electrically connected to the ARM microprocessor.

[0030] As a preferred solution of the present invention, the damping mechanism includes a damping slide cylinder, the interior of the damping slide cylinder is filled with damping oil, a damping slide plate is slidably arranged inside the damping slide cylinder, a flow hole is arranged on the surface of the damping slide plate, a pressure sensor is fixed on one side of the damping slide plate through a sliding rod, and the pressure sensor is electrically connected to the ARM microprocessor.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The rear CNT energy-absorbing plastic plates and front CNT energy-absorbing plastic plates at both ends of the seat body adopt a gradient distribution design with the density gradually decreasing from both ends to the middle. This design can, according to the distribution characteristics of the collision force, enable the high-density areas to preferentially absorb and disperse the impact energy, avoid excessive concentration of energy at a certain point, thereby effectively reducing the direct impact of the collision force on the passengers and significantly improving the energy absorption efficiency of the seat.

[0033] 2. The combined design of the damping mechanism and the first reset spring inside the seat base. During a collision, the damping mechanism dissipates the collision energy through the interaction of the damping oil and the damping slide plate. At the same time, the first reset spring can provide a certain elastic support for the seat, further buffering the collision force and ensuring that the impact force received by the passengers during the collision is effectively dispersed and absorbed.

[0034] 3. The inertial sensor inside the seat body can real-time monitor the motion state and collision acceleration of the seat, and transmit the data to the ARM microprocessor. The ARM microprocessor quickly judges the direction and intensity of the collision based on these data, and controls the motor to drive the gear to rotate, driving the seat body to make dynamic adjustments on the arc-shaped slide rail through the arc-shaped engagement groove, so that the seat can automatically adjust the angle and position according to the collision situation, ensuring that the passenger's body is always in the best protected posture and minimizing the harm to various parts of the passenger's body caused by the collision.

[0035] 4. During normal driving, passengers can, according to their own comfort needs, adjust the angle and position of the seat through manual or automatic control methods, using structures such as the first chute, the sliding connection block, and the push block to achieve a personalized riding experience. This flexible adjustment function not only improves the comfort of the passengers, but also meets the needs of passengers with different body types and different driving habits. The design of the first reset spring in the damping mechanism and the second reset spring in the sliding connection block enables the seat to automatically reset to the initial state after a collision, and can return to normal use without manual intervention. This automatic reset function not only improves the convenience of using the seat, but also reduces the maintenance cost, extends the service life of the seat, and at the same time provides more reliable protection for the passengers.

[0036] 5. The CNT composite material used in the present invention has high strength, high toughness and excellent energy absorption performance. Compared with traditional energy-absorbing materials, it can provide more reliable protection. At the same time, the gradient distribution design further optimizes the use efficiency of the material, reduces material waste, and reduces the material cost on the premise of ensuring safety performance.

[0037] VI. The combination of an inertial sensor and an ARM microprocessor can quickly and accurately monitor and process collision signals, ensuring that the seat can respond in a timely manner at the moment of collision. The high reliability of this intelligent control system not only improves the safety performance of the safety seat but also reduces potential safety hazards caused by system failures, providing more reliable protection for passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall three-dimensional back structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the three-dimensional structure of the seat base of the present invention;

[0040] Figure 3 It is a schematic diagram of the internal structure of the seat base of the present invention;

[0041] Figure 4 It is a schematic diagram of the overall internal structure of the present invention;

[0042] Figure 5 It is a schematic diagram of the annular slide rail structure of the present invention;

[0043] Figure 6 It is a schematic diagram of the motor structure of the present invention;

[0044] Figure 7 It is a schematic diagram of the overall three-dimensional front structure of the present invention;

[0045] Figure 8 It is a schematic diagram of the damping mechanism structure of the present invention;

[0046] Figure 9 It is a schematic diagram of the arc engagement groove structure of the present invention.

[0047] In the figure: 1. Seat base; 2. Seat body; 3. Connecting lock; 4. First chute; 5. Pusher block; 6. Damping mechanism; 7. Slide table; 8. Turntable; 9. Pressure sensor; 10. First return spring; 11. Arc slide rail; 12. Gear; 13. Stopper; 14. ARM microprocessor; 15. Battery; 16. Straight slide rail; 17. Socket; 18. Slide block; 19. Annular slide rail; 20. Motor; 21. Second chute; 22. Rear CNT energy-absorbing plastic plate; 23. Front CNT energy-absorbing plastic plate; 24. Damping oil; 25. Damping slide plate; 26. Damping slide cylinder; 27. Slide rod; 28. Flow hole; 29. Arc chute; 30. Arc engagement groove; 31. Inertial sensor; 32. Insert rod; 33. Sliding connection block; 34. Second return spring. DETAILED DESCRIPTION OF THE INVENTION

[0048] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0049] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0050] It should be noted that when an element is referred to as "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0052] Please refer to Figures 1-9 , the present invention provides a technical solution:

[0053] An energy absorption device for an automotive safety seat based on gradient distribution CNT, comprising a seat base 1, a seat body 2 and a connecting lock 3. On both sides inside the seat base 1, straight slide rails 16 are fixedly provided. A slide table 7 is slidably provided on the surface of the straight slide rails 16. Inside one side of the seat base 1, a plurality of damping mechanisms 6 and a first return spring 10 are fixedly provided. The other ends of the damping mechanisms 6 and the first return spring 10 are fixedly connected to the slide table 7. On the surface of the seat base 1, on one side corresponding to the damping mechanism 6, a second chute 21 is provided. On one side of the seat base 1, a stop block 13 is fixedly provided. The stop block 13 on one side of the seat base 1 is in close connection with the other side of the slide table 7, playing a limiting role to prevent the slide table 7 from sliding excessively and squeezing electrical components; the stop block 13 is in close connection with the other side of the slide table 7; when driving normally, when the slide table 7 slides on the straight slide rails 16, the first return spring 10 is in a natural state, and the damping mechanism 6 provides appropriate resistance to prevent the seat from sliding due to bumps during driving.

[0054] A rear CNT energy-absorbing plastic plate 22 and a front CNT energy-absorbing plastic plate 23 are fixedly provided at both ends of the seat body 2. The composite material layers of the rear CNT energy-absorbing plastic plate 22 and the front CNT energy-absorbing plastic plate 23 on both sides of the seat body 2 are distributed in a gradient with the density being high at the two ends of the seat body 2 and gradually decreasing toward the middle of the seat body 2.

[0055] As an example of the present invention, an annular slide rail 19 is fixedly provided inside the slide table 7 , a plurality of sliders 18 are slidably provided on the surface of the annular slide rail 19 , and a turntable 8 is fixedly provided on the upper end of the sliders 18 .

[0056] As an example of the present invention, arc-shaped slide rails 11 are fixedly provided on both sides of the upper end of the turntable 8, and the bottom of the seat body 2 is slidably set on the surface of the arc-shaped slide rails 11 through an arc-shaped slide groove 29. The bottom of the seat body 2 is slidably connected to the arc-shaped slide rails 11 on the turntable 8 through the arc-shaped slide groove 29, ensuring that the seat can be rotated and adjusted in the horizontal direction to meet the needs of passengers entering and exiting the vehicle or adjusting their riding posture.

[0057] As an example of the present invention, a motor 20 is fixedly arranged inside the turntable 8, a gear 12 is arranged at the output end of the motor 20, an arc-shaped meshing groove 30 is arranged at the bottom of the seat body 2, and the arc-shaped meshing groove 30 is meshed and connected with the gear 12. The motor 20 inside the turntable 8 meshes with the arc-shaped meshing groove 30 at the bottom of the seat body 2 through the gear 12, thereby realizing the electric rotation function of the seat. The ARM microprocessor 14 controls the operation of the motor 20, so that the rotation angle and speed of the seat can be accurately adjusted according to the passenger's operation instructions.

[0058] As an example of the present invention, the bottom of the seat body 2 is arranged in an arc shape, and the center of the arc of the bottom of the seat body 2 is the same as the arc-shaped slide rail 11 and the arc-shaped engagement groove 30 .

[0059] As an example of the present invention, a slide groove 4 is provided on the surface of the seat base 1, a sliding connection block 33 is slidably provided inside the slide groove 4, a push block 5 is fixedly provided on the upper end of the sliding connection block 33, and an insertion rod 32 and a return spring 34 are fixedly provided on both sides of the sliding connection block 33.

[0060] As an example of the present invention, sockets 17 are provided on both sides of the turntable 8, and the insertion rod 32 is plugged into the socket 17. The sliding connection block 33 slides in the slide groove 4, and the return spring 2 34 supports the insertion rod 32. The insertion rod 32 thereon can be inserted into the sockets 17 on both sides of the turntable 8 to lock the seat body 2 in a specific position to prevent accidental rotation due to external force during driving.

[0061] As an example of the present invention, an ARM microprocessor 14 and a storage battery 15 are fixedly arranged inside the seat base 1, and an inertial sensor 31 is fixedly arranged inside the seat body 2. The model of the inertial sensor 31 is the TMM55E-PMH010 inertial sensor. Both the inertial sensor 31 and the motor 20 are electrically connected to the ARM microprocessor 14. When a vehicle collision or emergency braking occurs, during the collision process, the inertial sensor 31 (model: TMM55E-PMH010) will detect the change in the acceleration or deceleration of the vehicle, cooperate with the pressure sensor 9 to detect whether there is a sudden change in pressure, and transmit the signal to the ARM microprocessor 14. The ARM microprocessor 14 judges whether the vehicle is in a collision state according to the signal of the inertial sensor 31.

[0062] As an example of the present invention, the damping mechanism 6 includes a damping sliding cylinder 26. The damping oil 24 is filled inside the damping sliding cylinder 26. A damping sliding plate 25 is slidably arranged inside the damping sliding cylinder 26. A flow hole 28 is arranged on the surface of the damping sliding plate 25. A pressure sensor 9 is fixedly arranged on one side of the damping sliding plate 25 through a slide bar 27. The pressure sensor 9 is electrically connected to the ARM microprocessor 14. If a collision signal is detected, the ARM microprocessor 14 will immediately control the motor 20 to operate. At the same time, the ARM microprocessor 14 adjusts the operating state of the motor 20 in real time according to the signal fed back by the pressure sensor 9, so that the seat body 2 makes appropriate rotational adjustment on the arc-shaped slide rail 11 to optimize the force direction of the passenger and reduce the neck and spine injuries caused by the collision.

[0063] With the transmission of the impact force, the slide table 7 slides on the straight slide rail 16, and the damping mechanism 6 and the first reset spring 10 start to work. The damping sliding plate 25 in the damping mechanism 6 slides inside the damping sliding cylinder 26, and the damping oil 24 generates resistance through the flow hole 28 to further absorb the impact energy.

[0064] At the same time, the rear CNT energy-absorbing plastic plates 22 and the front CNT energy-absorbing plastic plates 23 at both ends of the seat body 2 start to play a role. Since the composite material layer is distributed in a gradient from high density at both ends of the seat body 2 to gradually decreasing towards the middle, it can effectively absorb and disperse the impact energy and reduce the injury to the passenger.

[0065] Working principle: When in use, during normal driving, when the sliding table 7 slides on the straight rail 16, the first reset spring 10 is in a natural state, and the damping mechanism 6 provides appropriate resistance to prevent the seat from sliding due to bumps during driving. The bottom of the seat body 2 is slidably connected to the arc-shaped rail 11 on the turntable 8 through the arc-shaped chute 29, ensuring that the seat can be rotated and adjusted horizontally to meet the needs of passengers getting in and out of the vehicle or adjusting the sitting posture. The motor 20 inside the turntable 8 meshes with the arc-shaped meshing groove 30 at the bottom of the seat body 2 through the gear 12 to achieve the electric rotation function of the seat. The ARM microprocessor 14 controls the operation of the motor 20, enabling the rotation angle and speed of the seat to be accurately adjusted according to the operation instructions of the passengers. The stopper 13 on one side of the seat base 1 is in fit connection with the other side of the sliding table 7, playing a limiting role to prevent the sliding table 7 from sliding excessively and squeezing the electrical components. The sliding connection block 33 slides in the first chute 4, and the second reset spring 34 presses against the insertion rod 32, and the insertion rod 32 thereon can be inserted into the sockets 17 on both sides of the turntable 8 to lock the seat body 2 in a specific position, preventing accidental rotation due to external forces during driving.

[0066] When the vehicle collides or brakes emergently, during the collision, the inertial sensor 31 (model: TMM55E-PMH010) will detect the change in the acceleration or deceleration of the vehicle, cooperate with the pressure sensor 9 to detect whether there is a sudden change in pressure, and transmit the signal to the ARM microprocessor 14. The ARM microprocessor 14 judges whether the vehicle is in a collision state according to the signal of the inertial sensor 31.

[0067] If a collision signal is detected, the ARM microprocessor 14 will immediately control the operation of the motor 20. At the same time, the ARM microprocessor 14 adjusts the operation state of the motor 20 in real time according to the signal fed back by the pressure sensor 9, enabling the seat body 2 to make appropriate rotational adjustments on the arc-shaped rail 11 to optimize the force direction of the passengers and reduce neck and spinal injuries caused by the collision.

[0068] As the impact force is transmitted, the sliding table 7 slides on the straight rail 16, and the damping mechanism 6 and the first reset spring 10 start to work. The damping slide plate 25 in the damping mechanism 6 slides in the damping cylinder 26, and the damping oil 24 generates resistance through the circulation holes 28 to further absorb the impact energy.

[0069] At the same time, the rear CNT energy-absorbing plastic plates 22 and the front CNT energy-absorbing plastic plates 23 at both ends of the seat body 2 start to play a role. Due to the gradient distribution of its composite material layer from high density at both ends of the seat body 2 to gradually decreasing towards the middle, it can effectively absorb and disperse the impact energy and reduce the harm to the passengers.

[0070] Meanwhile, the first return spring 10 and the second return spring 34 will provide a restoring force after the collision, causing the seat body 2 and the sliding table 7 to return to the initial position, preparing for the next use.

[0071] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy absorption device for a car safety seat based on gradient distributed CNT, comprising a seat base (1), a seat body (2) and a connecting buckle (3), characterized in that: Straight rails (16) are fixedly provided on both sides of the interior of the seat base (1), a slide table (7) is slidably provided on the surface of the straight rails (16), a plurality of damping mechanisms (6) and a return spring (10) are fixedly provided on one side of the interior of the seat base (1), the other ends of the damping mechanism (6) and the return spring (10) are fixedly connected to the slide table (7), a slide groove (21) is provided on the surface of the seat base (1) corresponding to the side of the damping mechanism (6), a stopper (13) is fixedly provided on one side of the seat base (1), and the stopper (13) is fittedly connected to the other side of the slide table (7); A rear CNT energy absorbing plastic plate (22) and a front CNT energy absorbing plastic plate (23) are fixedly provided at both ends of the seat body (2); the composite material layers of the rear CNT energy absorbing plastic plate (22) and the front CNT energy absorbing plastic plate (23) on both sides of the seat body (2) are distributed in a gradient with a high density at the two ends of the seat body (2) and a gradually decreasing density toward the middle of the seat body (2).

2. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 1, wherein: An annular slide rail (19) is fixedly arranged inside the slide table (7), a plurality of sliding blocks (18) are slidably arranged on the surface of the annular slide rail (19), and a turntable (8) is fixedly arranged on the upper end of the sliding block (18).

3. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 2, wherein: Arc-shaped slide rails (11) are fixedly provided on both sides of the upper end of the turntable (8), and the bottom of the seat body (2) is slidably arranged on the surface of the arc-shaped slide rails (11) through an arc-shaped slide groove (29).

4. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 3, wherein: A motor (20) is fixedly arranged inside the turntable (8), a gear (12) is arranged at the output end of the motor (20), and an arc-shaped meshing groove (30) is arranged at the bottom of the seat body (2), and the arc-shaped meshing groove (30) is meshedly connected with the gear (12).

5. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 4, characterized in that: The bottom of the seat body (2) is arranged in an arc shape, and the center of the arc of the bottom of the seat body (2) is the same as the arc-shaped slide rail (11) and the arc-shaped engagement groove (30).

6. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 5, characterized in that: The surface of the seat base (1) is provided with a slide groove (4), a sliding connection block (33) is slidably provided inside the slide groove (4), a push block (5) is fixedly provided at the upper end of the sliding connection block (33), and an insertion rod (32) and a return spring (34) are respectively fixedly provided on both sides of the sliding connection block (33).

7. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 6, characterized in that: Sockets (17) are provided on both sides of the turntable (8), and the insertion rod (32) is plugged and connected with the sockets (17).

8. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 6, wherein: An ARM microprocessor (14) and a storage battery (15) are fixedly arranged inside the seat base (1), an inertial sensor (31) is fixedly arranged inside the seat body (2), the inertial sensor (31) is a TMM55E-PMH010 inertial sensor, and the inertial sensor (31) and the motor (20) are both electrically connected to the ARM microprocessor (14).

9. The energy absorption device for an automotive safety seat based on gradient-distributed CNT according to claim 6, wherein: The damping mechanism (6) includes a damping sliding cylinder (26). The interior of the damping sliding cylinder (26) is filled with damping oil (24). A damping sliding plate (25) is slidably arranged inside the damping sliding cylinder (26). A flow hole (28) is arranged on the surface of the damping sliding plate (25). A pressure sensor (9) is fixedly arranged on one side of the damping sliding plate (25) through a sliding rod (27). The pressure sensor (9) is electrically connected to the ARM microprocessor (14).

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