Seat and vehicle

Abstract

The utility model relates to the technical field of zero-gravity seats, in particular to a seat and a vehicle. The seat body is arranged on the fixed base; the sliding assembly is arranged between the seat body and the fixed base, and the sliding assembly comprises a sliding rail and a sliding part matched with the sliding rail; the sliding rail is arranged on the seat body, and the sliding piece is arranged on the fixed base. And the seat body can generate displacement matched with the length direction of the sliding rail through the sliding rail and the sliding piece. The buffering mechanism is arranged on the fixed base, the buffering mechanism is connected with the seat body, and the buffering mechanism is used for buffering impact force generated when the seat body displaces. When a vehicle is collided, the seat body can slide along with inertia of a passenger, impact force is absorbed through the buffering mechanism, the passenger is prevented from sliding forwards or downwards due to inertia, and therefore the risk that the passenger breaks away from the seat and a safety belt is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of zero-gravity seats, in particular to a seat and a vehicle. BACKGROUND

[0002] With the increasing demand for high-end cars, not only the configuration and function have been significantly improved, but also the safety performance and function are facing new requirements. The three-point seat belt commonly used in household cars effectively restrains the body of the occupant through the fixed points on both sides of the cushion and the backrest, ensuring safety. In the event of a collision, the seat belt can act in the opposite direction to prevent the occupant from moving forward due to inertia, keeping him on the seat.

[0003] However, with the widespread use of zero-gravity seats in cars, the time and frequency of the occupant using this state have gradually increased. Due to the large inclination angle of the backrest of the zero-gravity seat, the angle between the occupant's body and the running direction of the vehicle is less than 30 degrees. In this case, once a collision occurs, the restraining ability of the seat belt on the occupant in the inertia direction will be significantly reduced, and the occupant may not only move forward, but also slide downward, posing a risk of escaping from the seat and the seat belt. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a seat and a vehicle, aiming to solve the problem of safety hazards of the occupant escaping from the zero-gravity seat in the event of a collision.

[0005] The first aspect of the present application provides a seat, comprising:

[0006] a fixed base;

[0007] a seat body arranged on the fixed base;

[0008] a sliding assembly arranged between the seat body and the fixed base, the sliding assembly comprising a sliding rail and a sliding piece matched with the sliding rail; the sliding rail is arranged on the seat body, and the sliding piece is arranged on the fixed base; the seat body can be displaced in the length direction of the sliding rail through the sliding rail and the sliding piece;

[0009] a buffer mechanism arranged on the fixed base, the buffer mechanism being connected with the seat body, and the buffer mechanism being used for buffering the impact force generated when the seat body is displaced.

[0010] Optionally, the sliding rail is arranged along the length direction of the seat body, and the sliding rail is arranged in an arc shape.

[0011] Optionally, the sliding rail is arranged along the width direction of the seat body.

[0012] Optionally, the sliding piece comprises a plurality of limit sliding bearings.

[0013] The first support part is arranged on the fixed base, and a plurality of the limiting sliding bearings are rotatably arranged on the first support part along the length direction of the slide rail.

[0014] Optionally, the slide rail comprises a first slide rail and a second slide rail, the first slide rail is arranged along the length direction of the seat body, and the first slide rail is arranged in an arc shape, and the second slide rail is arranged along the width direction of the seat body.

[0015] Optionally, the buffer mechanism comprises a mounting frame, a first buffer cylinder and a second buffer cylinder which are matched with the number of the slide rail.

[0016] The mounting frame is fixedly arranged on the fixed base, one end of the first buffer cylinder is hingedly connected with the mounting frame, and the other end is hingedly connected with the first end of the slide rail.

[0017] One end of the second buffer cylinder is hingedly connected with the mounting frame, and the other end is hingedly connected with the second end of the slide rail.

[0018] Optionally, the sliding part comprises a gear, a second support part is arranged on the fixed base, the gear is rotatably connected to the second support part through a mounting shaft, and the length direction of the slide rail is provided with a rack which is engaged with the gear.

[0019] Optionally, the buffer mechanism comprises a servo motor and a belt.

[0020] The output shaft of the servo motor is connected with the mounting shaft through the belt.

[0021] Optionally, the two ends of the track in the length direction are provided with adjusting blocks which are connected with the seat body.

[0022] The second aspect of the application provides a vehicle comprising the seat provided by the first aspect of the application.

[0023] Advantages:

[0024] 1. When the vehicle collides, the seat body can slide with the inertia of the occupant, and the impact force can be absorbed by the buffer mechanism, so as to prevent the occupant from sliding forward or downward due to inertia, thereby reducing the risk of separating from the seat and the safety belt.

[0025] 2. Through the synergistic effect of the sliding assembly and the buffer mechanism, the seat body can smoothly slide and decelerate when colliding, thereby avoiding the harm caused by sudden stop to the user.

[0026] 3. The solution provides various implementation examples of sliding components (such as limit sliding bearings, gears, etc.) and buffer mechanisms (such as buffer cylinders, springs, servo motors + belts, etc.), which can be customized according to different vehicle types and passenger needs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a seat according to an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the structure of a seat slide rail and a limiting sliding bearing according to an embodiment of this application;

[0030] Figure 3 yes Figure 2 Cross-sectional view at point A in the middle;

[0031] Figure 4 This is a structural schematic diagram of a seat in working condition according to an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: seat body 1, slide rail 21, limit sliding bearing 22, adjusting block 23, mounting bracket 31, first buffer cylinder 32, second buffer cylinder 33, fixed base 4, first support part 41. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] like Figures 1-3 As shown, the first aspect of this application provides a seat, including:

[0035] Fixed base 4;

[0036] The seat body 1 is mounted on the fixed base 4;

[0037] A sliding assembly is disposed between the seat body 1 and the fixed base 4. The sliding assembly includes a slide rail 21 and a sliding member that cooperates with the slide rail 21. The slide rail 21 is disposed on the seat body 1, and the sliding member is disposed on the fixed base 4. The seat body 1 can undergo displacement matching the length direction of the slide rail 21 through the slide rail 21 and the sliding member.

[0038] A buffer mechanism is provided on the fixed base 4 and is connected to the seat body 1. The buffer mechanism is used to buffer the impact force generated when the seat body 1 is displaced.

[0039] The fixed base 4 can be installed on the vehicle's cabin floor, serving as a stable support for the entire seat and providing the necessary load-bearing capacity and stability. The seat body 1 is specifically an existing zero-gravity seat, which is the part that the user directly sits on, providing a comfortable seating experience. The seat body 1 is connected to the fixed base 4 through the sliding component and the cushioning mechanism, thereby realizing the functions of sliding and cushioning.

[0040] The sliding assembly consists of the slide rail 21 and the sliding member, allowing the seat body 1 to slide freely relative to the fixed base 4 along the length of the slide rail 21. In the event of a vehicle collision, the seat body 1 and the slide rail 21 on it will slide along the length of the slide rail 21, using the sliding member fixed to the fixed base 4 as a base point. Furthermore, the two ends of the slide rail 21 are closed, and the sliding member is fitted inside the slide rail 21, preventing it from detaching from the slide rail 21. This restricts the sliding of the seat body 1 within the length of the slide rail 21. When the vehicle is impacted, the occupant and the seat body 1 slide together due to inertia. At this time, the buffer mechanism can absorb and disperse the resulting impact force, allowing the occupant and the seat body 1 to dissipate the impact force during the sliding process. Overall, when a vehicle collision occurs, the sliding seat body 1 slides along with the occupants due to inertia, keeping the seat body 1 in contact with the occupants. During this process, the seat body 1 is buffered and decelerated by the buffer mechanism, allowing the occupants and the seat body 1 to decelerate and absorb the impact force together. This prevents the safety hazard of the occupants being directly ejected from the seat due to the seat remaining stationary during the impact.

[0041] like Figure 3 As shown, in one optional embodiment, the sliding member includes a plurality of limiting sliding bearings 22, and a first support portion 41 is provided on the fixed base 4. The plurality of limiting sliding bearings 22 are rotatably assembled on the first support portion 41 along the length direction of the slide rail 21.

[0042] The limiting sliding bearing 22 is located inside the slide rail 21, which mainly plays a role in supporting and guiding the stable sliding of the seat body along the slide rail 21. When the slide rail 21 and the seat body 1 are displaced, that is, the slide rail 21 slides on the limiting sliding bearing 22, and the limiting sliding bearing 22 does not displace during the entire sliding process, but only rotates in cooperation with the slide rail 21 inside. When the end of the slide rail 21 contacts the limiting sliding bearing 22, the limiting sliding bearing 22 completely blocks and limits the continuous sliding of the slide rail 21 and the seat body 1, and this is the maximum distance of the slide rail 21 and the seat body 1 sliding.

[0043] Through the assembly of the limiting sliding bearing 22, the seat body 1 can maintain stability during sliding, reducing shaking and deviation. The rotating design of the limiting sliding bearing 22 can be in direct contact with the slide rail 21, thereby reducing friction and wear and prolonging the service life.

[0044] Multiple limiting sliding bearings 22 are rotatably assembled along the length direction of the slide rail 21, which can ensure that the seat remains stable during sliding, reduces friction and vibration, and improves ride comfort. Through the dispersion support of multiple limiting sliding bearings 22, the weight of the seat and the occupant can be more effectively borne, and the support strength of the entire seat structure is enhanced. The rotatable assembly of the limiting sliding bearing 22 on the slide rail 21 can ensure that the seat smoothly buffers along the preset arc-shaped track in emergency situations such as collisions, maintaining a stable motion trajectory.

[0045] Specifically, the buffer mechanism includes a mounting frame 31, a first buffer cylinder 32 and a second buffer cylinder 33 which are adapted in number to the slide rail 21.

[0046] The mounting frame 31 is fixedly assembled on the fixed base 4, one end of the first buffer cylinder 32 is hingedly connected to the mounting frame 31, and the other end is hingedly connected to the first end of the slide rail 21.

[0047] One end of the second buffer cylinder 33 is hingedly connected to the mounting frame 31, and the other end is hingedly connected to the second end of the slide rail 21.

[0048] The mounting bracket 31 serves as the fixed and supporting structure of the buffer mechanism, firmly mounting the first buffer cylinder 32 and the second buffer cylinder 33 on the fixed base 4. It ensures that the buffer mechanism remains stable when subjected to impact forces, without loosening or falling off. The mounting bracket 31 also serves to connect the first buffer cylinder 32 and the second buffer cylinder 33 to the slide rail 21. It effectively transmits the buffer force generated by the first buffer cylinder 32 and the second buffer cylinder 33 to the slide rail 21 and the seat body 1 through the articulation with the first buffer cylinder 32 and the second buffer cylinder 33, thereby achieving the buffering and support of the seat.

[0049] The first buffer cylinder 32 and the second buffer cylinder 33 can quickly respond when the seat body 1 is subjected to impact forces, absorbing and dispersing these impact forces, thereby gradually slowing down the sliding of the seat body 1 and calming it down, while through the process of gas compression and release inside, the first buffer cylinder 32 and the second buffer cylinder 33 can effectively reduce the vibration and sway of the seat, improving the comfort of the ride.

[0050] When the seat is subjected to impact forces, the first buffer cylinder 32 and the second buffer cylinder 33 will quickly respond by absorbing the impact forces through the process of gas compression and release inside. After the impact forces, the first buffer cylinder 32 and the second buffer cylinder 33 will restore to the initial state using the gas pressure inside, thereby driving the seat body 1 to reset.

[0051] Further, in an alternative embodiment, the first buffer cylinder 32 and the second buffer cylinder 33 can be replaced by springs.

[0052] Springs can deform when subjected to external forces, thereby absorbing and dispersing impact forces. When the external forces disappear, the springs can restore to the initial state, providing a resetting force for the seat. The stiffness and travel of the springs can be adjusted as needed to accommodate different sizes of impact forces. The buffering and resetting capabilities of the springs help maintain the stability of the seat when subjected to impact forces. Overall, springs can also have the same effect as the first buffer cylinder 32 and the second buffer cylinder 33.

[0053] At the same time, compared with buffer cylinders, the manufacturing cost of springs is generally lower. Therefore, using springs as buffer elements can reduce the overall cost of the seat, making it more market competitive. The structure of the spring is relatively simple and not as complex as the buffer cylinder. This helps to simplify the buffering mechanism of the seat and reduce the complexity of production and maintenance. The maintenance of the spring is relatively simple and does not require regular maintenance and maintenance like the buffer cylinder. This can reduce the maintenance cost of the seat and improve its reliability.

[0054] Further, in an alternative embodiment, the first and second buffer cylinders 32 and 33 can also be directly connected to the seat body 1 and the fixed base 4, and multiple buffer cylinders are arranged at different positions.

[0055] The arrangement of multiple buffer cylinders can more effectively disperse and absorb impact forces, thereby improving the cushioning performance of the seat. By adjusting the positions and number of buffer cylinders, the cushioning effect can be further optimized to adapt to different collision situations and occupant needs. Directly connecting the buffer cylinders to the seat body 1 and the fixed base 4 can enhance the stability of the seat body 1 when subjected to impact forces. Directly connecting the buffer cylinders to the seat body and the fixed base simplifies the installation process, and this design also facilitates maintenance and replacement of the buffer cylinders, reducing maintenance costs.

[0056] In an alternative embodiment, the buffer mechanism can also be arranged as a brake disc device, which then locks the limit sliding bearing 22 during impact, and then allows the limit sliding bearing 22 and the slide rail 21 to generate friction, thereby buffering the impact force of the slide rail 21 and the seat body 1 sliding.

[0057] In an alternative embodiment, the sliding member includes a gear, the fixed base 4 is provided with a second support portion, the gear is rotatably connected to the second support portion through a mounting shaft, and the length direction of the slide rail 21 is provided with a rack that engages with the gear.

[0058] The gear and rack structure is relatively simple and easy to maintain and adjust. For example, when the sliding speed or position of the sliding member needs to be adjusted, the number of teeth of the gear or the position of the rack can be changed to achieve this. In addition, since the engagement relationship between them is clear, troubleshooting and maintenance are also more convenient. The gear and rack are usually made of wear-resistant and corrosion-resistant materials, with a long service life. At the same time, since the engagement relationship between them is tight and stable, the sliding member is less likely to malfunction or be damaged during use, improving the durability and reliability of the entire system. The engagement structure of the gear and rack can withstand a large load, so that the sliding member can maintain a stable sliding state when subjected to heavy pressure or external impact.

[0059] Further, the buffer mechanism includes a servo motor and a belt, and the output shaft of the servo motor is connected to the mounting shaft through the belt.

[0060] The servo motor can be directly connected to the vehicle's on-board system, controlled by the on-board system, or additional impact sensors and other components can be added to start the servo motor when an impact is sensed or the slide rail 21 and the seat body 1 slide.

[0061] When the slide rail 21 and the seat body 1 slide, the servo motor is started to drive the belt, which acts on the gear to make the gear generate a force to resist the slide of the slide rail 21 and the seat body 1, so as to resist the impact force of the slide of the slide rail 21 and the seat body 1. The servo motor is connected through the belt, the gear and the mounting shaft. When the gear is reversely rotated by the impact force of the slide of the slide rail 21 and the seat body 1, the belt will slide, so that the servo motor will not be locked because it cannot drive the gear to rotate in the direction (i.e. the direction of rotation of the gear driven by the servo motor to resist the slide of the slide rail 21) that the servo motor desires. Thus, the servo motor can continuously operate to continuously generate the force to resist the slide of the slide rail 21 and the seat body 1. After the slide of the slide rail 21 and the seat body 1 stops, the servo motor drives the gear to rotate, so as to send the slide rail 21 and the seat body 1 back to the initial position to complete the reset of the seat body 1.

[0062] Further, the slide rail 21 is provided with an adjusting block 23 connected with the seat body 1 at both ends in the length direction.

[0063] The adjusting block 23 is used to correct the angle of the seat body 1, so that the angle of the seat body 1 is in the normal use state, and the zero-gravity seat does not excessively change its shape due to the addition of the slide rail 21 and the buffer mechanism, so as to lose the original comfort.

[0064] In an optional embodiment, the slide rail 21 is arranged along the length direction of the seat body 1, and the slide rail 21 is arranged in an arc shape.

[0065] The length direction of the seat body 1 is generally the same as the driving direction of the vehicle and the direction facing the user when the user sits. The slide rail 21 is arranged along the length direction of the seat body 1. When the vehicle receives a frontal impact, the seat body 1 and the slide rail 21 can slide along the direction of the frontal impact, and the impact force is buffered through the buffer mechanism.

[0066] The slide rail 21 is designed in an arc shape. Compared with a linear slide rail, the arc-shaped slide rail can provide a longer sliding distance at the same rotation angle. This means that when a collision occurs, the seat and the occupant can slide along the arc-shaped track for a longer distance to release the inertial force, thereby increasing the buffering distance and time, which helps to reduce the instantaneous impact force.

[0067] When the seat body 1 is in zero-gravity state, the reaction force given by the safety belt to the human body is small. When a collision occurs, the passenger's body and the seat body 1 will move along the arc-shaped slide rail 21 due to inertia. As the rotation angle of the seat body 1 increases, the reaction force gradually shifts from being provided by the safety belt to being provided by the seat to the passenger's hips and legs, until the inertial force and the reaction force are completely equal, and the entire buffering is obtained.

[0068] The arc-shaped slide rail 21 not only helps to reduce the impact force during a collision, but also improves the comfort of the passenger through a smoother movement trajectory. During the buffering release process, the control effect of the inertial force on the passenger's body gradually increases, and as the sliding distance increases, the inertial force gradually decreases, which helps to reduce the discomfort of the passenger.

[0069] Further, the radius of the arc-shaped slide rail 21 is less than 3 meters.

[0070] When the radius of the slide rail is less than 3 meters, a more efficient layout can be achieved in a limited vehicle interior space. Such a design not only meets the safety requirements, but also avoids excessive occupation of the vehicle interior space, thereby improving the overall comfort of the riding environment.

[0071] As shown in Figure 4 , when in use:

[0072] Stage one: comfortable riding, zero-gravity experience

[0073] During the riding of the passenger, the seat starts the zero-gravity mode, at which time the inclination angle of the seat is significantly increased, providing the passenger with a comfortable riding experience as if floating in the air.

[0074] Stage two: collision response, arc-shaped buffering release

[0075] When a collision occurs, the seat immediately responds and slides along the pre-set arc-shaped slide rail 21. During this process, the seat body 1 and the passenger continue to move due to inertia, while the arc-shaped slide rail 21 ingeniously guides this movement and releases the inertial force. As the rotation angle of the seat body 1 gradually increases, the angle between the reaction force and the inertial force on the passenger's hips and legs continuously decreases, and the control effect of the inertial force on the passenger's body becomes more and more significant. At the same time, the increase of the sliding distance also makes the inertial force gradually weaken, providing a more stable transition for the passenger.

[0076] Stage three: limit position, inertial force release is completed

[0077] When the seat body 1 and the occupant's body slide to the limit position of the slide rail 21, the inertial force has been released completely or partially. At this time, the direction of the inertial force is basically or completely opposite to all the restraining forces on the occupant's hips and legs, reaching a state of force balance. After that, the seat and the occupant's body will start to slowly recover to the zero-gravity riding posture.

[0078] Stage four: restore the zero-gravity state

[0079] After a short buffering and recovery, the seat body 1 and the occupant's body successfully recover to the zero-gravity riding posture.

[0080] In an optional embodiment, the slide rail 21 is arranged along the width direction of the seat body 1.

[0081] When the slide rail 21 is arranged along the width direction of the seat body 1, it can provide lateral stability for the seat when the vehicle collides or brakes in an emergency, that is, stability in the side direction perpendicular to the driving direction. This arrangement can allow the seat body 1 to slide and buffer when it is hit in the lateral direction, thereby protecting the occupant from injury.

[0082] In actual traffic accidents, the collision can come from different directions. Arranging the slide rail 21 along the width direction of the seat body 1 can make the seat respond to collisions in multiple directions and provide better protection for the occupant. This flexibility helps to adapt to collisions at different angles and reduces the risk of injury to the occupant.

[0083] In an optional embodiment, the slide rail 21 includes a first slide rail and a second slide rail, the first slide rail is arranged along the length direction of the seat body 1, and the first slide rail is arranged in an arc shape, and the second slide rail is arranged along the width direction of the seat body 1.

[0084] The first slide rail and the second slide rail can be arranged in layers. If the second slide rail is arranged along the width direction, a layer plate can be connected on the second slide rail, the second slide rail is connected between the fixed base 4 and the layer plate, and the first slide rail along the length direction of the seat body 1 is arranged on the layer plate, and the first slide rail is directly connected with the seat body 1. At the same time, corresponding to the two layers of slide rails, the matching slide and the buffering mechanism are also arranged, and the principle is the same as the above embodiment, which will not be repeated here.

[0085] The second aspect of the embodiment of the application provides a vehicle, and the vehicle includes the seat provided in the first aspect.

[0086] It should be noted that each of the embodiments in the present specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be mutually referred to.

[0087] It should also be noted that in this paper, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations, nor can it be understood as indicating or implying relative importance. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or terminal device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or terminal device including the element.

[0088] The above provides a detailed description of the technical solutions of the present application. In this paper, specific examples are used to explain the principles and implementation methods of the present application. The above description of the embodiments is only used to help understand the present application, and the content of the specification should not be understood as limiting the present application. At the same time, for those skilled in the art, according to the present application, there will be different forms of changes in specific implementation and application range, which do not need and cannot enumerate all the implementation ways, and the obvious changes or changes derived therefrom are still within the protection scope of the present application.

Claims

1. A seat, characterized in that, The vehicle comprises: a fixed base; a seat body arranged on the fixed base; a sliding assembly arranged between the seat body and the fixed base, the sliding assembly comprising a sliding rail and a sliding piece matched with the sliding rail; the sliding rail is arranged on the seat body, and the sliding piece is arranged on the fixed base; the seat body can be displaced along the length direction of the sliding rail through the sliding rail and the sliding piece; a buffer mechanism arranged on the fixed base, the buffer mechanism being connected with the seat body, and the buffer mechanism being used for buffering the impact force generated when the seat body is displaced.

2. The seat of claim 1, wherein The sliding rail is arranged along the length direction of the seat body, and the sliding rail is arranged in an arc shape.

3. The seat of claim 1, wherein The sliding rail is arranged along the width direction of the seat body.

4. A seat according to claim 2 or 3, characterised in that, The sliding piece comprises a plurality of limit sliding bearings. The fixed base is provided with a first support part, and the plurality of limit sliding bearings are rotationally assembled on the first support part along the length direction of the sliding rail.

5. The seat of claim 1, wherein The sliding rail comprises a first sliding rail and a second sliding rail; the first sliding rail is arranged along the length direction of the seat body, and the first sliding rail is arranged in an arc shape; and the second sliding rail is arranged along the width direction of the seat body.

6. The seat of claim 1, wherein The buffer mechanism comprises a mounting frame matched with the number of the sliding rails, a first buffer air cylinder and a second buffer air cylinder. The mounting frame is fixedly assembled on the fixed base; one end of the first buffer air cylinder is hingedly connected with the mounting frame, and the other end is hingedly connected with a first end of the sliding rail; one end of the second buffer air cylinder is hingedly connected with the mounting frame, and the other end is hingedly connected with a second end of the sliding rail.

7. The seat of claim 1, wherein The sliding piece comprises a gear; the fixed base is provided with a second support part; the gear is rotationally connected to the second support part through a mounting shaft; and the length direction of the sliding rail is provided with a rack engaged with the gear.

8. The seat of claim 7, wherein, The buffer mechanism comprises a servo motor and a belt. The output shaft of the servo motor is connected with the mounting shaft through the belt.

9. The seat of claim 1, wherein, Both ends of the sliding rail in the length direction are provided with adjusting blocks connected with the seat body.

10. A vehicle characterized by comprising: The vehicle comprises the seat according to any one of claims 1-9.

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