Vehicle seat and vehicle

Abstract

This disclosure relates to a vehicle seat and a vehicle. The vehicle seat includes: a base; a base; two first connecting components spaced apart on a first side of the base, each first connecting component including a first connector, a first end of the first connector being connected to the base side via a ball joint structure, and a second end being connected to the base side via a ball joint structure; a second connecting component, disposed on a second side of the base, including at least a second connector, a first end of the second connector being connected to the base side via a revolute joint or a ball joint structure, and a second end being connected to the base side via a ball joint structure; a third connecting component, disposed between the first and second sides of the base, including a third connector, a first end of the third connector being connected to one of the base and the base, and a second end being connected to the other of the base and the base via a ball joint structure; a force-applying component, disposed between the base and the base, configured to provide a force when the base changes posture relative to the base; improving the comfort of the vehicle seat.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle parts technology, and more particularly to a vehicle seat and a vehicle. Background Technology

[0002] In some related technologies, vehicle seats include a base and a pedestal, with the base and pedestal connected by a multi-degree-of-freedom hinge. During dynamic conditions such as vehicle turning or braking, occupants may tilt left or right or forward or backward under the influence of centrifugal force or inertial force, affecting ride comfort. Summary of the Invention

[0003] Some embodiments of this disclosure provide a vehicle seat and a vehicle for improving the comfort of the vehicle seat.

[0004] In one aspect of this disclosure, a vehicle seat is provided, comprising: Base; A base, movably disposed on the base; Two first connecting components are spaced apart on the first side of the base. Each first connecting component includes a first connector. The first end of the first connector is connected to the base side through a ball joint structure, and the second end is connected to the base side through a ball joint structure. A second connecting component is disposed on a second side of the base, the second side being opposite to the first side. The second connecting component includes at least a second connector. The first end of the second connector is connected to the base side via a rotary joint or ball joint structure, and the second end of the second connector is connected to the base side via a ball joint structure. A third connecting assembly is disposed between the first and second sides of the base. The third connecting assembly includes a third connector, the first end of which is connected to one of the base and the subbase, and the second end of which is connected to the other of the base and the subbase via a ball joint. The force-applying element is configured to provide a force to suppress the attitude change when the base changes attitude relative to the pedestal.

[0005] In some embodiments, the force-applying element includes at least one of an active force-applying element and a passive force-applying element.

[0006] In some embodiments, a force-applying element is provided at the location of each of the first connecting components.

[0007] In some embodiments, a second connecting component is provided on the second side of the base, and a force-applying component is provided at the location of the second connecting component.

[0008] In some embodiments, two second connecting components are spaced apart on the second side of the base, and a force-applying member is provided at the location of each second connecting component.

[0009] In some embodiments, the vehicle seat further includes: Seat frame, provided on the base; and At least one of the elastic component and the damping component is disposed between the base and the seat frame.

[0010] In some embodiments, each of the first connecting components further includes a first swing arm, a first end of which is connected to the base via a revolute joint, and a second end of which is connected to the first end of the first connector via a ball joint structure.

[0011] In some embodiments, the force-applying component includes two first driving components, each of which is driven to a first swing arm.

[0012] In some embodiments, the second connecting component further includes a second swing arm, the first end of which is connected to the base via a revolute joint, and the second end of which is connected to the first end of the second connector via a ball joint or a revolute joint.

[0013] In some embodiments, the force-applying component includes a second driving component, which is driven to connect to the second swing arm.

[0014] In some embodiments, two second connecting components are spaced apart on the second side of the base, each second connecting component further comprising a second swing arm, the first end of the second swing arm being connected to the base via a revolute joint, and the second end of the second swing arm being connected to the first end of the second connecting member via a ball joint structure.

[0015] In some embodiments, the force-applying component includes two second driving components spaced apart, each of the second driving components being driven to a second swing arm.

[0016] In some embodiments, the ball joint structures at the first and second ends of the first connector, and the ball joint structures at the first and second ends of the second connector, are both first ball joint structures.

[0017] In some embodiments, two ear plates are spaced apart on the base side and / or the base side, and the first ball joint structure includes: The first ball seat is constructed in a ring shape, fixedly disposed at the end of the first connector or the second connector, and installed between the two ear plates; The first ball head is located inside the first ball seat, and the first ball head is provided with a through hole; The through-feed member has a limiting part at one end, which is located on the outside of an ear plate. The other end of the through-feed member passes through the ear plate, the through hole of the first ball head, and the other ear plate in sequence, and is fixedly connected to the other ear plate. The diameter of the through hole of the first ball head is larger than the diameter of the rod of the through-feed member, and there is a clearance fit between the through-feed member and the first ball head.

[0018] In some embodiments, a first end of the third connector is fixedly connected to one of the base and the subbase, and a second end of the third connector is connected to the other of the base and the subbase via a second ball joint structure; the second ball joint structure includes: The second ball seat is constructed as a ring and is fixedly installed on the base or the foundation; The second ball head has a through hole and is located inside the second ball seat; The second end of the third connector passes through the through hole of the second ball head and is inserted into the base or the foundation. The diameter of the through hole of the second ball head is larger than the outer diameter of the third connector, and the second ball head and the third connector can slide axially relative to each other.

[0019] In some embodiments, a first end of the third connector is movably connected to one of the base and the subbase relative to each other, and a second end of the third connector is connected to the other of the base and the subbase via a second ball joint structure; the second ball joint structure includes: The second ball seat is constructed as a ring and is fixedly installed on the base or the foundation; The second ball head has a through hole and is located inside the second ball seat; The second end of the third connector passes through the through hole of the second ball head and is fixedly connected to the second ball head.

[0020] In some embodiments, at least one of the output ends of the first drive member and the second drive member is connected to a lead screw, and a threaded transmission member is threadedly installed on the lead screw. The threaded transmission member is rotatably connected to the first swing arm or the second swing arm on the corresponding side through a rotating pair.

[0021] In one aspect of this disclosure, a vehicle is provided, including a floor and the aforementioned vehicle seat, the base of which is fixedly, slidably, or rotatably disposed on the floor.

[0022] Based on the above technical solution, this disclosure has at least the following beneficial effects: In some embodiments, the vehicle seat, through the coordinated cooperation of a first connecting component, a second connecting component, and a third connecting component, enables the base to adaptively tilt relative to the base in multiple directions. The third connecting component is disposed between the first and second sides of the base. This configuration, while preserving a certain degree of freedom of movement, constrains the instantaneous rotation center position of the base during tilting. Regardless of whether the seat is tilted to the left, right, or backward, its main rotation center is limited to the vicinity of the third connecting component, mitigating problems such as abrupt changes in the direction of support force and instability caused by rotation center drift, thereby improving user comfort. Furthermore, the force-applying component is configured to provide force to suppress the posture change when the base changes posture relative to the base, thereby achieving active control or passive buffering of the seat posture, significantly improving ride comfort and safety during vehicle dynamic driving. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this disclosure, illustrate exemplary embodiments of the present disclosure and are used to explain the disclosure, but do not constitute an undue limitation of the disclosure. In the drawings: Figure 1 This is a schematic diagram showing the left and right tilting of a vehicle seat according to some embodiments of this disclosure; Figure 2 This is a schematic diagram of a vehicle seat tilting backward according to some embodiments of the present disclosure; Figure 3 This is an exploded view of a vehicle seat according to a specific embodiment of this disclosure; Figure 4 This is a structural schematic diagram of a vehicle seat provided according to a specific embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of a first connecting component provided according to some embodiments of the present disclosure; Figure 6 This is a schematic diagram of the first end of the first connector and the first ball joint structure provided according to some embodiments of the present disclosure; Figure 7 This is a schematic diagram of the second end of the first connector and the first ball joint structure provided according to some embodiments of the present disclosure; Figure 8 This is a schematic diagram of the structure of the second connecting component according to a specific embodiment of this disclosure; Figure 9 This is an exploded view of a third connecting component provided according to some embodiments of the present disclosure; Figure 10 This is a cross-sectional schematic diagram of a third connecting component provided according to some embodiments of the present disclosure; Figure 11 This is a schematic diagram of a vehicle seat tilting to the left according to a specific embodiment of this disclosure; Figure 12 This is a schematic diagram of a vehicle seat tilting to the right according to a specific embodiment of this disclosure; Figure 13 This is a schematic diagram of a vehicle seat tilting backward according to a specific embodiment of this disclosure; Figure 14 This is a schematic diagram of a first drive member driving a first swing arm according to some embodiments of the present disclosure; Figure 15 This is a schematic diagram of the structure of a first driving member provided according to some embodiments of the present disclosure; Figure 16 This is a structural schematic diagram of the vehicle seat height adjustment state according to a specific embodiment two of this disclosure; Figure 17 This is an exploded view of a vehicle seat according to a specific embodiment two of this disclosure; Figure 18 This is a structural schematic diagram of a vehicle seat provided according to a specific embodiment two of this disclosure; Figure 19 This is a schematic diagram of a vehicle seat tilting to the left according to a specific embodiment two of this disclosure; Figure 20 This is a schematic diagram of a vehicle seat tilting to the right according to a specific embodiment two of this disclosure; Figure 21 This is a schematic diagram of the rearward tilting structure of a vehicle seat according to a specific embodiment two of this disclosure; Figure 22 This is a structural schematic diagram of the vehicle seat height adjustment state according to a specific embodiment two of this disclosure; Figure 23 This is a schematic diagram of the structure of a vehicle seat after the drive component is installed according to a specific embodiment 2 of this disclosure; Figure 24 This is an exploded view of a vehicle seat after the drive unit has been installed according to a specific embodiment two of this disclosure; Figure 25 This is a schematic diagram of the vehicle seat vibration damping state provided according to a specific embodiment three of this disclosure; Figure 26 This is an exploded view of a vehicle seat according to a specific embodiment three of this disclosure; Figure 27 This is a structural schematic diagram of a vehicle seat provided according to a specific embodiment three of this disclosure; Figure 28 This is an exploded view of the linkage mechanism of a vehicle seat according to a specific embodiment three of this disclosure; Figure 29 This is a schematic diagram of the first damping state of a vehicle seat according to a specific embodiment three of this disclosure; Figure 30 This is a schematic diagram of the second damping state of a vehicle seat provided according to a specific embodiment three of this disclosure; Figure 31 This is a structural schematic diagram of a vehicle seat provided according to a specific embodiment four of this disclosure; Figure 32 This is a schematic diagram of the structure of a vehicle seat tilting to the left according to a specific embodiment four of this disclosure; Figure 33 This is a schematic diagram of a vehicle seat tilting to the right according to a specific embodiment four of this disclosure; Figure 34 This is a schematic diagram of the rearward tilting structure of a vehicle seat according to a specific embodiment four of this disclosure; Figure 35 This is a structural schematic diagram of the vehicle seat height adjustment state according to a specific embodiment four of this disclosure; Figure 36 This is a schematic diagram of a vehicle seat rotating to the left according to a specific embodiment four of this disclosure; Figure 37 This is a schematic diagram of a vehicle seat rotating to the right according to a specific embodiment four of this disclosure.

[0024] The labels in the attached diagram are explained as follows: 10-Base; 20-Seat base; 30-Force-applying component; 301-First driving component; 32-Second driving component; 33-Screw; 34-Threaded transmission component; 40-Seat frame; 50-Elastic component; 60-Damping component; 1-First connecting assembly; 11-First connector; 12-First swing arm; 2-Second connecting assembly; 21-Second connecting piece; 22-Second swing arm; 3-Third connecting component; 31-Third connecting piece; 4-First ball joint structure; 41-First ball seat; 42-First ball head; 43-Through-through component; 5-Second ball joint structure; 51-Second ball seat; 52-Second ball head; 61 - First link; 62 - Second link; 63 - Third link; 64 - Fourth link.

[0025] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0026] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0027] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0028] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0029] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0031] A vehicle seat generally includes a base 10, a seat base 20, and a seat frame 40. The base 10 is mounted on the vehicle floor, serving as the supporting foundation for the entire seat. The seat base 20 is positioned above the base 10, and the base 20 is connected to the base 10 via a linkage mechanism, allowing the seat base 20 to tilt or swing relative to the base 10 in at least one direction. The seat frame 40 is mounted on the seat base 20 and is used to support and mount functional components such as the seat cushion and side wings, and to transfer loads to the seat base 20.

[0032] In some related technologies, to achieve multi-directional swinging of the base 20 relative to the base 10 (such as tilting left, right, or backward, see reference...) Figure 1 and Figure 2 The linkage mechanism between the base 20 and the base 10 is achieved by hinge or ball joint. However, the instantaneous rotation center position of such a structure changes under different tilting postures, resulting in inconsistent motion trajectories and unstable support reaction force direction, which in turn affects ride comfort, especially under dynamic conditions such as vehicle turning or braking.

[0033] Based on this, some embodiments of the present disclosure provide a vehicle seat and a vehicle for improving the seating comfort.

[0034] refer to Figure 3 and Figure 4 In some embodiments, the vehicle seat includes a base 10, a base 20, two first connecting components 1, a second connecting component 2, a third connecting component 3, and a force-applying component 30.

[0035] The base 20 is movably mounted on the base 10.

[0036] Two first connecting components 1 are spaced apart on the first side of the base 10, and each first connecting component 1 includes a first connector 11. (See reference) Figures 5 to 7 The first end of the first connector 11 is connected to the base side via a ball joint structure, and the second end is connected to the base side via a ball joint structure; optionally, the first connector 11 is constructed as a rod.

[0037] The second connecting assembly 2 is disposed on the second side of the base 10, opposite to the first side. The second connecting assembly 2 includes at least a second connecting member 21. The first end of the second connecting member 21 is connected to the base side via a revolute joint or ball joint structure, and the second end of the second connecting member 21 is connected to the base side via a ball joint structure. (See reference) Figure 8 In some embodiments, the first end of the second connector 21 is connected to the base 10 via a revolute joint, and the second end of the second connector 21 is connected to the base 20 via a ball joint structure. In other embodiments, the first end of the second connector 21 is connected to the base side via a ball joint structure or a revolute joint, and the second end of the second connector 21 is connected to the base 20 via a ball joint structure. Optionally, the second connector 21 is configured as a rod.

[0038] The third connecting component 3 is disposed between the first side and the second side of the base 10. The third connecting component 3 includes a third connector 31. The first end of the third connector 31 is connected to one of the base 10 and the base 20, and the second end of the third connector 31 is connected to the other of the base 10 and the base 20 through a ball joint structure. Optionally, the third connector 31 is constructed as a tube.

[0039] In some embodiments, the first end of the third connector 31 is connected to the base 10, and the second end of the third connector 31 is connected to the base 20 via a ball joint structure. In other embodiments, the first end of the third connector 31 is connected to the base 20, and the second end of the third connector 31 is connected to the base 10 via a ball joint structure.

[0040] The force-applying component 30 is configured to provide a force to suppress the attitude change of the base 20 relative to the base 10. The attitude change includes forward and backward tilting, left and right tilting, and up and down movement.

[0041] The first and second sides of the base 10 are positioned opposite each other along a first direction X, and two first connecting components 1 are spaced apart along a second direction Y. The first direction X intersects the second direction Y. Optionally, the first direction X is perpendicular to the second direction Y. The first direction X is the front-back direction of the seat, and the second direction Y is the left-right direction of the seat. A third direction Z intersects both the first direction X and the second direction Y. Optionally, the third direction Z is perpendicular to both the first direction X and the second direction Y, and the third direction Z is the height direction of the seat.

[0042] In the above embodiments, the vehicle seat, through the coordinated cooperation of the first connecting component 1, the second connecting component 2, and the third connecting component 3, enables the base 20 to adaptively tilt relative to the base 10 in multiple directions.

[0043] Each first connecting component 1 includes a first connecting member 11, both ends of which are provided with ball joint structures, thereby providing the base 20 with multi-degree-of-freedom movement capability and significantly improving the flexibility of the base 20 to rotate relative to the base 10.

[0044] The third connecting component 3 is disposed between the first and second sides of the base 10. It includes a third connector 31, one end of which is connected to the base 10 or the base 20, and the other end is connected to the base 20 or the base 10 via a ball joint structure. This configuration can constrain the instantaneous rotation center position of the base 20 during tilting while retaining a certain degree of freedom of movement. Regardless of whether the seat is tilted to the left, right, or backward, its main rotation center is stably limited to the vicinity of the third connecting component 3, alleviating problems such as sudden changes in the direction of support force and instability caused by the drift of the rotation center, and improving user comfort.

[0045] Furthermore, the force-applying component 30 is configured to provide a force to suppress the attitude change when the base 20 changes posture relative to the base 10. The force-applying component 30 can be an active force-applying component 30 (such as a motor, electric actuator, hydraulic actuator, etc.) or a passive force-applying component 30 (such as a spring, damper), thereby achieving active control or passive buffering of the seat posture, significantly improving ride comfort and safety during vehicle dynamic driving.

[0046] The technical effects of the vehicle seat provided in this disclosure are as follows: Cornering roll compensation (roll reduction function): When the vehicle turns right, the base 20 tends to shift to the left due to centrifugal force. At this time, the force-applying component 30 provides a force (to the right), causing the base 20 to tilt to the right (reducing the leftward tilt). This counteracts the centrifugal effect through lateral support, suppressing seat sway and achieving a "rocking reduction" effect. Similarly, when turning left, the base 20 tilts to the left. At this time, the force-applying component 30 provides a force (to the right), improving the stability of the seat posture.

[0047] Braking and tilting buffer: In emergency deceleration conditions such as sudden braking, the base 20 tends to tilt forward due to inertia, and the force-applying component 30 simultaneously provides rearward support, effectively reducing the forward tilt of the seat and improving braking safety and ride comfort.

[0048] In summary, this seat structure can achieve multi-degree-of-freedom adaptive motion in two main directions: lateral (left and right tilt) and longitudinal (forward and backward pitch). Combined with the force application component 30 to provide controllable force, it can provide stable and coordinated posture adjustment under dynamic driving conditions such as vehicle turning, braking or acceleration, taking into account dynamic support and inertial buffering, and significantly improving ride comfort and safety.

[0049] In some embodiments, the force-applying member 30 includes at least one of an active force-applying member and a passive force-applying member.

[0050] Among them, active force-applying components refer to devices that require external energy (such as electricity, hydraulic pressure, or pneumatic pressure) to drive and can actively output controllable force or displacement. For example, they can include motors, electric actuators, hydraulic cylinders, or pneumatic cylinders.

[0051] Passive force-applying components refer to elements that generate reaction forces when deformed under stress without requiring external energy and relying on their own elasticity or damping characteristics. Examples include helical springs, torsion springs, rubber buffer blocks, hydraulic dampers, and gas springs (without active control).

[0052] In some embodiments, the third connecting component 3 is located in the central region of the base 10.

[0053] In some embodiments, a force-applying element 30 is provided at the location of each first connecting component 1.

[0054] In the above embodiment, by forming a dual-drive layout on the first side of the base 10, and combining the third connecting component 3 in the middle, the two first connecting components 1 on the first side of the base 10 (both ends of each first connecting member 11 adopt a ball joint structure), and the second connecting component 2 on the second side of the base 10 (at least one end of its second connecting member 21 adopts a ball joint structure), the seat can achieve coordinated posture compensation in the first direction X (front-back direction) and the second direction Y (left-right direction).

[0055] In the second direction Y (left and right direction): when the vehicle turns, the base 20 can be driven to tilt in the following ways: single-side drive mode: the force-applying member 30 corresponding to the first connecting component 1 located on the inside of the turn pushes the base 20 on that side to lift; or differential drive mode: the two force-applying members 30 work together, one side extends and the other side shortens, so that the base 20 tilts around the first direction X axis.

[0056] In the first direction X (front and rear direction): Under braking or acceleration conditions, the force-applying component 30 extends and retracts synchronously, and in conjunction with the ball joint degree of freedom of the second connecting component 2 and the third connecting component 3, the base 20 pitches (tilts backward or tilts forward) around the second direction Y axis to achieve longitudinal buffering.

[0057] In some embodiments, a force-applying element 30 is provided at the location of the second connecting component 2.

[0058] In the above embodiment, a force-applying component 30 is provided at the location of the second connecting component 2. Combined with the two force-applying components 30 located at the location of the first connecting component 1, a three-drive layout of three force-applying components 30 is formed.

[0059] The three-drive system works in conjunction with the third connecting component 3 in the middle, the two first connecting components 1 on the first side (front side) of the base 10, each of the first connecting components 11 having ball joints at both ends, and the second connecting component 2 on the second side (rear side) of the base 10, with at least one end of its second connecting component 21 having a ball joint. Based on the seat's ability to achieve coordinated posture compensation in the first direction X (front-back direction) and the second direction Y (left-right direction), it further provides flexible buffering in the third direction Z (vertical direction) through the coordinated action of multiple ball joints and three force-applying components 30, effectively attenuating high-frequency vibrations from the vehicle floor and improving ride comfort.

[0060] In the above embodiment, the three force-applying components 30 work together to achieve coordinated attitude compensation in the first direction X (front-back direction) and the second direction Y (left-right direction), and further provide flexible buffering in the third direction Z (vertical direction) through the multi-ball joint connection structure and the elastic or damping characteristics of the force-applying components 30 themselves.

[0061] In other embodiments, the third-direction Z (vertical) flexible buffer can also be achieved through additionally provided elastic components 50 and / or damping components 60. Specifically, the vehicle seat also includes a seat frame 40, and at least one of the elastic components 50 and damping components 60.

[0062] The seat frame 40 is disposed on the base 20. The elastic component 50 and / or the damping component 60 are disposed between the base 20 and the seat frame 40.

[0063] When a vehicle travels on an uneven road surface, vibrations in the third direction (Z, vertical) from the vehicle floor are transmitted to the base 20 via the base 10. At this time, the elastic component 50 (such as a coil spring) located between the base 20 and the seat frame 40 undergoes compression or shear deformation, absorbing some of the vibration energy and buffering the impact through its elastic restoring force. Simultaneously, if a damping component 60 (such as a hydraulic damper or a magnetorheological damper) is provided, it generates speed-related resistance during the movement of the seat frame 40 relative to the base 20, converting the vibration kinetic energy into heat energy and dissipating it.

[0064] In some embodiments, the elastic component 50 includes a helical spring, a leaf spring, a polyurethane elastic block, a rubber bushing, or a closed airbag.

[0065] In some embodiments, the damping element 60 includes a magnetorheological damper, an electrorheological damper, a hydraulic damper, a pneumatic damper, etc.

[0066] In some embodiments, two second connecting components 2 are spaced apart on the second side of the base 10, and a force-applying member 30 is provided at the location of each second connecting component 2. Combining the two first connecting components 1 and their corresponding two force-applying members 30 on the first side of the base 10, a four-drive layout of four force-applying members 30 is formed.

[0067] The aforementioned four-wheel drive system, together with the third connecting component 3 in the middle, the two first connecting components 1 on the first side (each first connecting component 11 has ball joints at both ends), and the two second connecting components 2 on the second side (each second connecting component 21 has ball joints at both ends), work in concert to achieve coordinated posture compensation in the first direction X (front-back direction) and the second direction Y (left-right direction). Furthermore, through the synergistic effect of multiple ball joints and four force-applying components 30, it provides overall height adjustment in the third direction Z (vertical direction) (adjusting the third direction Z up / down). Specifically, the four force-applying components 30 extend or shorten synchronously, achieving active adjustment of the overall vertical position of the seat while maintaining the basic horizontal posture of the base 20. In addition, the two force-applying components 30 located diagonally can be coordinated to move (for example, the left front and right rear force-applying components 30 extend simultaneously, while the right front and left rear force-applying components 30 shorten simultaneously), and combined with the ball joint degrees of freedom in each connecting component, the base 20 can achieve a small angle of yaw adjustment around the vertical axis to adapt to the occupant's seating posture preference or the vehicle's posture requirements under dynamic driving conditions such as curves and lane changes.

[0068] refer to Figures 5 to 7 In some embodiments, each first connecting component 1 further includes a first swing arm 12, the first end of which is connected to the base 10 via a revolute joint, and the second end of which is connected to the first end of the first connecting member 11 via a ball joint structure. The second end of the first connecting member 11 is connected to the base 20 via a ball joint structure.

[0069] Through the linkage between the first swing arm 12 and the first connector 11 in the first connecting assembly 1, the front area of ​​the left or right side of the seat can be raised independently or synchronously. For example, when the vehicle turns right, the left first swing arm 12 is raised relative to the left, causing the left side of the base 20 to rise, assisting in achieving a rightward tilt posture and enhancing the responsiveness and stability of the lateral support; similarly, when the vehicle turns left, it can assist in achieving a leftward tilt posture, thus realizing the linkage adjustment of left and right tilt.

[0070] In the above embodiments, specifically, refer to Figure 6The first swing arm 12 and the first connecting member 11 can be connected by a first ball joint structure 4. The first ball joint structure 4 includes a first ball head 42, a first ball seat 41, and a through member 43. The first ball seat 41 is constructed as an annular shape and is fixedly disposed at the first end of the first connecting member 11; the second end of the first swing arm 12 is provided with two ear plates spaced apart, forming a U-shaped groove between the two ear plates. The first ball seat 41 is installed into the U-shaped groove, and the first ball head 42 is accommodated in the first ball seat 41. The first ball head 42 is provided with a through hole, which is coaxially aligned with the annular cavity of the first ball seat 41. One end of the through-piece 43 is provided with a limiting part, which is located on the outside of one side plate. The other end of the through-piece 43 passes through the side ear plate, the through hole of the first ball head 42 and the other side ear plate in sequence, and is fixedly connected to the other side ear plate, thereby axially limiting the first ball head 42 in the U-shaped groove (the through hole of the first ball head 42 is coaxially aligned with the annular cavity of the first ball seat 41, and the through-piece 43 also passes through the first ball seat 41 located in the U-shaped groove). The diameter of the through hole of the first ball head 42 is larger than the diameter of the rod of the through-piece 43, so that the through-piece 43 and the first ball head 42 maintain a clearance fit and do not restrict its rotation. Thus, when the first swing arm 12 swings, the first ball head 42 moves with the U-shaped groove and rotates freely in multiple directions in the first ball seat 41 fixed to the first connector 11, realizing the universal hinge between the first connector 11 and the first swing arm 12, while preventing the first ball head 42 from coming out and ensuring the reliability of the connection.

[0071] refer to Figure 7 The second end of the first connector 11 is connected to the base 20 via a ball joint structure, which can adopt the same construction as the first ball joint structure 4. Specifically, the base 20 is provided with a U-shaped groove formed by two spaced ear plates, and the second end of the first connector 11 is fixedly provided with a first ball seat 41; the first ball head 42 is disposed in the first ball seat 41 and is confined in the U-shaped groove; the first ball head 42 is axially confined by the through hole of the ear plate and the first ball head 42 through the through member 43, and the diameter of the through hole of the first ball head 42 is larger than the diameter of the through member 43, so as to ensure that it can rotate freely in the first ball seat 41, thereby realizing the universal hinge between the first connector 11 and the base 20.

[0072] In some embodiments, reference Figure 23 The force-applying component 30 includes two first driving components 301, each of which is driven and connected to a first swing arm 12. Optionally, the first driving component 301 is rotatably connected to the base 10 via a revolute joint, and the driving end of the first driving component 301 is rotatably connected to the first swing arm 12 via a revolute joint. The first driving component 301 is an active force-applying component and may include a motor, an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc.

[0073] In the above embodiment, the first end of the first swing arm 12 is rotatably connected to the base 10 via a revolute joint (such as a bolt, pin, or shaft); the first drive member 301 is rotatably connected to the base 10 via a revolute joint, and the output end of the first drive member 301 is connected to the first swing arm 12 via a revolute joint. The first drive member 301 is used to push or pull the first swing arm 12 to swing up or down around its hinge point with the base 10, thereby causing the first connecting member 11 and the base 20 to rise or fall at the corresponding positions, thereby realizing the adjustment of the posture of the base 20.

[0074] Specifically, when the first drive member 301 on the left pushes the first swing arm 12 on the left to rotate upward, the first swing arm 12 lifts the front left side of the base 20 through the first connector 11, and the base 20 tilts to the right as a whole, forming a right-leaning posture; conversely, when the first drive member 301 on the right pushes the first swing arm 12 on the right to rotate upward, the first swing arm 12 lifts the front right side of the base 20 through the first connector 11, and the base 20 tilts to the left as a whole, forming a left-leaning posture; when the two first drive members 301 push the first swing arms 12 on both sides simultaneously, the first swing arms 12 on both sides rotate upward simultaneously, lifting the front of the base 20 together, causing the front of the seat to rise, and achieving a forward-leaning buffer posture.

[0075] In the above embodiment, a dual-drive layout is formed on the first side of the base 10 by two first drive members 301. Combined with the third connecting component 3 in the middle, the two first connecting components 1 on the first side of the base 10 (both ends of each first connecting component 11 adopt a ball joint structure), and the second connecting component 2 on the second side of the base 10 (at least one end of its second connecting component 21 adopts a ball joint structure), the seat can achieve coordinated posture compensation in the first direction X (front-back direction) and the second direction Y (left-right direction).

[0076] In some embodiments, the first drive member 301 is rotatably connected to the base 10 via a revolute joint. The output end of the first drive member 301 is connected to a lead screw 33, which extends obliquely upward. A threaded transmission member 34 (nut) is threadedly fitted onto the lead screw 33. The threaded transmission member 34 is rotatably connected to the first swing arm 12 on the corresponding side via a revolute joint. During operation, the first drive member 301 drives the lead screw 33 to rotate, causing the threaded transmission member 34 to move axially along the lead screw 33. Since the threaded transmission member 34 is rotatably connected to the first swing arm 12, its linear motion is converted into the swinging of the first swing arm 12 around its hinge point with the base 10, thereby causing the front of the base 20 to rise or fall accordingly, thus realizing seat posture adjustment.

[0077] In some embodiments, the second connecting assembly 2 further includes a second swing arm 22, the first end of which is connected to the base 10 via a revolute joint, and the second end of which is connected to the first end of the second connecting member 21 via a ball joint or a revolute joint. The second end of the second connecting member 21 is connected to the base 20 via a ball joint.

[0078] In the above embodiments, the second end of the second swing arm 22 is connected to the first end of the second connecting member 21 via a ball joint structure or a revolute joint. When a ball joint structure is used, it can have the same construction as the first ball joint structure 4. Specifically, the second end of the second swing arm 22 is provided with a U-shaped groove formed by two spaced ear plates, and the first end of the second connecting member 21 is fixedly provided with a first ball seat 41; the first ball head 42 is disposed within the first ball seat 41 and confined within the U-shaped groove; the first ball head 42 is axially confined by a through-hole passing through the ear plates and the first ball head 42, and the diameter of the through-hole of the first ball head 42 is larger than the diameter of the through-hole 43 to ensure free rotation within the first ball seat 41, thereby achieving a universal joint between the second swing arm 22 and the second connecting member 21.

[0079] Similarly, the second end of the second connector 21 is connected to the base 20 via a ball joint structure. This ball joint structure can adopt the same construction as the first ball joint structure 4. Specifically, the base 20 is provided with a U-shaped groove formed by two spaced ear plates, and the second end of the second connector 21 is fixedly provided with a first ball seat 41; the first ball head 42 is disposed in the first ball seat 41 and is confined in the U-shaped groove; the first ball head 42 is axially confined by the through hole of the ear plate and the first ball head 42 through the through member 43, and the diameter of the through hole of the first ball head 42 is larger than the diameter of the through member 43, so as to ensure that it can rotate freely in the first ball seat 41, thereby realizing the universal joint between the second connector 21 and the base 20.

[0080] In some embodiments, the force-applying component 30 includes a second driving component 32, which is motive-connected to the second swing arm 22. Optionally, the second driving component 32 is rotatably connected to the base 10 via a revolute joint, and the driving end of the second driving component 32 is rotatably connected to the second swing arm 22 via a revolute joint. The second driving component 32 is an active force-applying component and may include a motor, an electric push rod, a hydraulic cylinder, or a pneumatic cylinder, etc.

[0081] The first end of the second swing arm 22 is rotatably connected to the base 10 via a rotating joint (such as a bolt, pin, or shaft); the second drive member 32 is mounted on the base 10, and its output end is connected to the second swing arm 22 via a rotating joint, for driving the second swing arm 22 to swing up or down around its hinge point with the base 10, thereby causing the second connecting member 21 and the rear of the base 20 to rise or fall accordingly.

[0082] Specifically, the second driving component 32 may include an electric push rod or a motor. The output end of the motor is connected to a lead screw 33, which extends obliquely upwards. A threaded transmission component 34 is threadedly mounted on the lead screw 33. This threaded transmission component 34 is rotatably connected to the second swing arm 22 via a revolute joint. During operation, the second driving component 32 drives the lead screw 33 to rotate, causing the threaded transmission component 34 to move axially along the lead screw 33. Since the threaded transmission component 34 is connected to the second swing arm 22 via a revolute joint, this linear motion is converted into the second swing arm 22 swinging upwards or downwards around its hinge point with the base 10, thereby causing the second connecting component 21 and the rear of the base 20 to rise or fall accordingly, achieving posture adjustment of the rear of the seat.

[0083] In the above embodiment, through two first drive members 301 and one second drive member 32, the three drive structure works in conjunction with the third connecting component 3 in the middle, the two first connecting components 1 on the first side (front side) of the base 10, each of the two ends of the first connecting component 11 adopts a ball joint structure, and the second connecting component 2 on the second side (rear side) of the base 10, at least one end of the second connecting component 21 adopts a ball joint structure. This enables the seat to achieve coordinated posture compensation in the first direction X (front-back direction) and the second direction Y (left-right direction). Furthermore, through the synergistic effect of multiple ball joint structures and the three drive members, it provides flexible buffering in the third direction Z (vertical direction), effectively attenuating high-frequency vibrations from the vehicle floor and improving ride comfort.

[0084] In some embodiments, the second side of the base 10 is provided with two second connecting components 2 spaced apart. Each second connecting component 2 further includes a second swing arm 22. The first end of the second swing arm 22 is connected to the base 10 through a rotary joint, and the second end of the second swing arm 22 is connected to the first end of the second connector 21 through a ball joint structure.

[0085] In some embodiments, the force-applying member 30 includes two second driving members 32 spaced apart, each of which is driven to a second swing arm 22.

[0086] A four-drive system is formed by two first drive components 301 and two second drive components 32. This system, along with the central third connecting component 3, the two first connecting components 1 on the first side (each first connecting component 11 has ball joints at both ends), and the two second connecting components 2 on the second side (each second connecting component 21 also has ball joints at both ends), works in concert to achieve coordinated attitude compensation in the first direction X (front-back direction) and the second direction Y (left-right direction). Furthermore, through the synergistic effect of multiple ball joints and the four drive components, it provides overall height adjustment in the third direction Z (vertical direction) (adjusting the third direction Z up / down). Additionally, by controlling the coordinated actions of two force-applying components 30 located diagonally (e.g., the left front and right rear force-applying components 30 move synchronously, and the right front and left rear force-applying components 30 move synchronously), and combining the ball joint degrees of freedom in each connecting component, the base 20 can achieve small-angle yaw adjustments around the vertical axis.

[0087] In some embodiments, the first end of the third connector 31 is fixedly connected to one of the base 10 and the base 20, and the second end of the third connector 31 is connected to the other of the base 10 and the base 20 via a ball joint structure. For example, the first end of the third connector 31 is fixedly connected to the base 10, and the second end of the third connector 31 is connected to the base 20 via a ball joint structure. Alternatively, the first end of the third connector 31 is fixedly connected to the base 20, and the second end of the third connector 31 is connected to the base 10 via a ball joint structure.

[0088] Specifically, refer to Figure 9The ball joint structure can adopt a second ball joint structure 5, which includes a second ball head 52 and a second ball seat 51. The second ball head 52 has a through hole, and the second ball seat 51 is constructed as an annular shape. The third connector 31 is constructed as a tube. In an embodiment where the second end of the third connector 31 is connected to the base 20 via the ball joint structure, the second end of the third connector 31 passes through the through hole of the second ball head 52 and is inserted into the base 20, and the base 20 moves up and down along the third connector 31. In an embodiment where the second end of the third connector 31 is connected to the base 10 via the ball joint structure, the second end of the third connector 31 passes through the through hole of the second ball head 52 and is inserted into the base 10, and the third connector 31 moves up and down relative to the base 10. The diameter of the through hole of the second ball head 52 is larger than the outer diameter of the third connector 31, so that the second ball head 52 and the third connector 31 can slide freely axially relative to each other. The outer surface of the first ball head 42 is spherical, and a second ball seat 51 is sleeved on its outer side. The second ball seat 51 is fixedly installed on the base 20 or the base 10, and the inner cavity of the second ball seat 51 is a spherical concave cavity that matches the outer surface of the first ball head 42. Thus, the second ball head 52 can slide axially relative to the third connector 31 and can also rotate freely in multiple directions within the second ball seat 51, thereby forming a connection structure with a combined degree of freedom of sliding and universal rotation between the base 10 and the base 20.

[0089] In other embodiments, the first end of the third connector 31 is movably connected to one of the base 10 and the base 20, and the second end of the third connector 31 is connected to the other of the base 10 and the base 20 via a ball joint structure. For example, the first end of the third connector 31 is movably connected to the base 10 (the third connector 31 moves up and down relative to the base 10), and the second end of the third connector 31 is connected to the base 20 via a ball joint structure. Alternatively, the first end of the third connector 31 is movably connected to the base 20 (the base 20 moves up and down along the third connector 31), and the second end of the third connector 31 is connected to the base 10 via a ball joint structure.

[0090] Specifically, the ball joint structure can adopt a second ball joint structure 5, which includes a second ball head 52 and a second ball seat 51. The second ball head 52 has a through hole, and the second ball seat 51 is constructed as an annular shape. The third connecting member 31 is constructed as a tube. The second end of the third connecting member 31 passes through the through hole of the second ball head 52 and is fixedly connected to the second ball head 52; the outer surface of the first ball head 42 is spherical, and the second ball seat 51 is sleeved on its outer side. In the embodiment where the second end of the third connecting member 31 is connected to the base 20 through the ball joint structure, the second ball seat 51 is fixedly installed on the base 20; in the embodiment where the second end of the third connecting member 31 is connected to the base 10 through the ball joint structure, the second ball seat 51 is fixedly installed on the base 10. The inner cavity of the second ball seat 51 is a spherical concave cavity that matches the outer surface of the first ball head 42. The base 10 is provided with a guide limiting part for guiding or limiting the vertical sliding of the third connecting member 31 along the third direction Z. Alternatively, a guide and limiting part may be provided on the base 20 to guide or limit the up-and-down movement of the base 20 along the third connecting member 31. Thus, the base 20 can move relative to the base 10 in the third direction Z, and at the same time, the second ball joint structure 5 drives the base 20 to achieve multi-directional swing, thereby forming a composite degree of freedom connection structure between the base 20 and the base 10 that combines axial sliding and universal rotation.

[0091] Based on the description of the various embodiments above, the vehicle seat provided by the embodiments of this disclosure has at least the following beneficial effects.

[0092] The two first drive components 301 drive the left and right first swing arms 12 respectively. Combined with the constraints of the rear second connecting component 2 and the middle third connecting component 31, the seat posture can be adjusted independently or collaboratively in the front-to-back direction (pitch) and the left-to-right direction (tilt). It also supports vertical (third direction Z) overall lifting and micro-yaw adjustment around the vertical axis to meet the adaptive needs of the vehicle under dynamic conditions such as turning, braking and acceleration.

[0093] The driving component acts on the swing arm rather than the connecting component, forming a spatial linkage mechanism. The force transmission path is short and the leverage ratio is optimized. Compared with existing series or complex multi-link structures, the motor load is lower and the dynamic response is faster under the same operating conditions.

[0094] The central area of ​​the base 10 forms a recessed mounting area, and the connecting components are arranged in the base 10. The drive components can be embedded in the space between the swing arm and the base 10. The overall height direction (third direction Z) has a high degree of integration, which significantly reduces the requirements for the installation space in the vehicle.

[0095] The mechanism has a third connecting member 31 in the middle as a holding rod, which serves as an approximate rotation center during the attitude adjustment process, guiding the mechanism to rotate around the holding rod in space. During the movement, the yaw displacement is smaller and more comfortable.

[0096] Therefore, the problems of complex structure, high space occupation in third-direction Z-axis, and slow response speed of conventional posture compensation seats are solved, while improving structural reliability.

[0097] The following is in conjunction with the appendix Figures 1 to 37 This section describes in detail several specific embodiments of vehicle seats.

[0098] Specific Implementation Example 1: Reference Figures 1 to 15 It adopts a connection and drive layout of "central ball joint tube + three ball joint rods + dual drive", which can realize the pitch adjustment of the base 20 in the first direction X (front and back direction) and the tilt adjustment in the second direction Y (left and right direction), thereby completing multi-degree-of-freedom attitude compensation.

[0099] In the first specific embodiment, refer to Figures 3 to 15 The vehicle seat includes a seat frame 40, a base 10, a base 20, multiple connecting components, and two first drive members 301. A linkage mechanism is provided between the base 20 and the seat frame 40. The base 10 is fixedly mounted to the vehicle floor, or fixedly connected to a sliding component mounted on the vehicle floor to enable the entire seat to slide forward and backward, or fixedly connected to a rotating component mounted on the vehicle floor to enable the entire seat to rotate around the Z-axis. Multiple connecting components connect the base 10 and the base 20. There are four connecting components between the base 10 and the base 20 (two first connecting components 1, one second connecting component 2, and one third connecting component 3). The two first connecting components 1 are each equipped with an independent first drive member 301, forming a dual drive system; the second connecting component 2 is a passive linkage; the third connecting component 3 is a central tubular component connected to the middle of the base 20 via a ball joint structure, serving as a motion constraint reference center; all connecting components are connected to the base 10 and the base 20 via revolute joints or ball joint structures to ensure motion coordination and structural stability.

[0100] Specifically, two first connecting components 1 are spaced apart on the front side of the base 10 along the left-right direction (second direction Y) of the seat; a second connecting component 2 is located in the middle of the rear side of the base 10; a third connecting component 3 is located in the middle of the base 10 (in the middle area in the front-back direction); and two first driving members 301 are located on the base 10 and are respectively driven to the two first connecting components 1.

[0101] Each first connecting assembly 1 includes a first swing arm 12 and a first connector 11. The first end of the first swing arm 12 is rotatably connected to the base 10 via a revolute joint; the second end of the first swing arm 12 is connected to the first end of the first connector 11 via a first ball joint structure 4; the second end of the first connector 11 is connected to the corresponding front side of the base 20 via another first ball joint structure 4; each first swing arm 12 is also rotatably connected to the output end of a first drive member 301.

[0102] The first ball joint structure 4 includes a first ball head 42, a first ball seat 41, and a first through member 43. The first ball seat 41 is fixedly disposed at the end of the first connecting member 11 and is annular in shape. The corresponding end of the first swing arm 12 or the base 20 is provided with a U-shaped groove formed by two spacer plates, and the first ball seat 41 is accommodated in the U-shaped groove. The first ball head 42 is disposed in the inner spherical cavity of the first ball seat 41, and its through hole is coaxially aligned with the annular cavity of the first ball seat 41. The first through member 43 passes through one side plate, the through hole of the first ball head 42, and the other side plate in sequence, and is fixedly connected to the plate to limit the axial movement of the first ball head 42. The diameter of the through hole of the first ball head 42 is larger than the diameter of the first through member 43, so that the two are in clearance fit, allowing the first ball head 42 to rotate freely in multiple directions within the first ball seat 41, thereby realizing universal hinge.

[0103] The base 10 has a recessed mounting cavity in its central area; two first drive members 301 are respectively installed in the recessed mounting cavity to reduce the overall height and protect the drive mechanism. Each first drive member 301 is rotatably connected to the base 10 via a revolute joint, and its output end is connected to a lead screw 33. The lead screw 33 extends obliquely upward (i.e., it tilts from the lower rear of the base 10 to the upper front). A threaded transmission member 34 is threadedly installed on the lead screw 33, and the threaded transmission member 34 is rotatably connected to the first swing arm 12 on the corresponding side via a revolute joint. During operation, the first drive member 301 drives the lead screw 33 to rotate, causing the threaded transmission member 34 to move axially along the lead screw 33. Since the threaded transmission member 34 is hinged to the first swing arm 12, its linear motion is converted into the swing of the first swing arm 12 around its hinge point with the base 10, thereby causing the front of the base 20 to rise or fall accordingly, realizing seat posture adjustment. When the first driving components 301 on both sides move synchronously, the base 20 is tilted as a whole (X-axis attitude compensation in the first direction); when the two driving components are not synchronized, the base 20 is tilted to the left or right (Y-axis attitude compensation in the second direction).

[0104] The second connecting assembly 2 includes a second connecting member 21. The first end of the second connecting member 21 is connected to the rear center of the base 10 via a revolute joint, and the second end of the second connecting member 21 is connected to the rear center of the base 20 via a first ball joint structure 4. The construction of the first ball joint structure 4 here is the same as that in the aforementioned first connecting assembly 1, including a first ball head 42, a first ball seat 41, and a first through-hole member 43, enabling omnidirectional rotation. In the first specific embodiment, no driving member is provided at the second connecting assembly 2, and its movement is passively following.

[0105] The third connecting assembly 3 includes a third connector 31, which is constructed in a tubular shape. The first end of the third connector 31 is fixedly connected to the middle of the base 10; the second end of the third connector 31 is connected to the middle region of the base 20 through a second ball joint structure 5. The second ball joint structure 5 includes a second ball head 52 and a second ball seat 51: the second ball head 52 has a central through hole; the third connector 31 is constructed in a tubular shape, and its second end passes through the through hole of the second ball head 52 and is inserted into the base 20; the diameter of the through hole is larger than the outer diameter of the third connector 31, so that the second ball head 52 can slide freely along the axial direction of the third connector 31; the outer surface of the second ball head 52 is spherical; the second ball seat 51 is constructed in annular shape, fixedly installed on the base 20, and its inner cavity is a spherical concave cavity that matches the outer surface of the second ball head 52. The second ball head 52 can slide axially along the third connector 31 and rotate freely in multiple directions within the second ball seat 51, thus forming a composite connection structure between the third connector 31 and the base 20 that combines axial sliding and universal rotational freedom. During operation, the third connector 31 mainly serves as a motion constraint and attitude maintenance component, acting as an approximate rotation center to limit the unintended displacement of the base 20.

[0106] In the first specific embodiment, through the above-mentioned layout of "central ball joint tube + three ball joint rods (i.e., two first connecting members 11 and one second connecting member 21) + dual drive (i.e., two first drive members 301)", the system can achieve posture compensation of the seat base 20 in the following directions: Attitude compensation in the second direction Y (left and right direction): The two first drive members 301 work in a differential manner (e.g., the left drive member extends and the right drive member shortens), respectively driving the first swing arm 12 on the corresponding side to swing in opposite directions, so that the front of the base 20 presents an attitude of left high and right low or right high and left low; during this process, the second connecting component 2 on the rear side passively follows the movement, and the third connecting component 31 in the middle provides spatial constraints, together guiding the base 20 to tilt as a whole around the axis of the first direction X, which is suitable for lateral sway control when the vehicle is turning.

[0107] Attitude compensation in the first direction X (front and rear direction): The two first drive components 301 extend or shorten synchronously, and raise or lower the front of the base 20 synchronously; at this time, the rear second connecting component 2 swings passively, and the base 20 pitches around the axis of the second direction Y, thereby providing a backward tilt buffer during braking, or achieving forward tilt fit during acceleration, improving the occupant's support and comfort.

[0108] Since the ball joint structures (including the first ball joint structure 4 and the second ball joint structure 5) used between the first connector 11 and the base 20 / first swing arm 12, between the second connector 21 and the base 20, and between the third connector 31 and the base 20 all have multi-directional rotational freedom, the entire connection system can effectively avoid over-constraint of motion while realizing the adjustment of the first direction X pitch and the second direction Y tilt, ensuring that the components move in a coordinated manner without interference or jamming, and that the operation is smooth and reliable.

[0109] The specific operation process of Implementation Example 1: Locked State: The two first drive members 301 are in a locked state, fixing the positions of the corresponding first swing arms 12. Since the lower ends of the first swing arms 12 and the first connecting members 11 are connected through the first ball joint structure 4, the lower end of the first connecting members 11 is locked. At the same time, the upper end of the first connecting members 11 is connected to the base 20 through the first ball joint structure 4, and the third connecting member 31 is connected to the middle of the base 20 through the second ball joint structure 5. The entire base 20 is constrained at multiple points to a defined posture. At this time, although all kinematic pairs retain degrees of freedom, the entire system is in a static locked state due to the locking of the drive ends, and the seat posture remains unchanged.

[0110] Second direction Y-attitude compensation state (right side lift), refer to Figure 11 The right front first swing arm 12 rotates upward under the drive of the corresponding first drive member 301, causing the lower end of the right front first connecting member 11 to rise synchronously. Since the upper end of the right front first connecting member 11 is connected to the right front part of the base 20 through the first ball joint structure 4, the right front end of the base 20 is lifted accordingly. During this process, the middle part of the base 20, together with the second ball head 52, slides upward along the axis of the third connecting member 31 to adapt to the asymmetrical displacement of the front end. At the same time, the base 20 and each of the first ball heads 42 (including the first ball heads 42 in the first ball joint structure 4 and the second ball joint structure 5) undergo relative rotation to different degrees, releasing the motion constraint. Overall, the base 20 presents a posture with the right front high and the left front low, and the seat tilts to the left along the second direction Y, that is, it tilts backward along the first direction X.

[0111] Second direction Y-attitude compensation state (left side lift), reference Figure 12The left front first swing arm 12 rotates upward under the drive of the corresponding first drive member 301, causing the lower end of the left front first connecting member 11 to rise synchronously. Since the upper end of the left front first connecting member 11 is connected to the left front part of the base 20 through the first ball joint structure 4, the left front end of the base 20 is lifted accordingly. During this process, the middle part of the base 20, together with the second ball head 52, slides upward along the axis of the third connecting member 31 to adapt to the asymmetrical displacement of the front end. At the same time, the base 20 and each of the first ball heads 42 (including the first ball heads 42 in the first ball joint structure 4 and the second ball joint structure 5) undergo relative rotation to different degrees to ensure coordinated movement. Overall, the base 20 presents a posture with the left front higher and the right front lower. The seat tilts to the right along the second direction Y with the base 20 and tilts backward along the first direction X.

[0112] First direction X (forward / backward direction) attitude compensation state, reference Figure 13 The left and right first driving components 301 simultaneously drive their respective first swing arms 12 to swing upward, causing the lower ends of the first connecting components 11 on both sides to rise synchronously, thereby lifting the entire front end of the base 20. At the same time, the middle part of the base 20, together with the second ball head 52, slides upward along the third connecting component 31. The front end of the base 20 is lifted, and the seat tilts backward along the first direction X with the base 20.

[0113] Specific Implementation Example 2: Reference Figures 16 to 24 It adopts a layout of "central ball joint tube + three ball joint rods + three drives", which can realize pitch compensation in the first direction X (front and back direction), roll compensation in the second direction Y (left and right direction), and overall height adjustment and dynamic vibration reduction in the third direction Z (up and down direction).

[0114] The vehicle seat provided in the second specific embodiment includes a base 10, a base 20, four connecting components (two first connecting components 1, one second connecting component 2, and one third connecting component 3) connected between the two, and three driving components: two first driving components 301 respectively drive the two first connecting components 1 on the front side, and one second driving component 32 drives the second connecting component 2 on the rear side.

[0115] Unlike Specific Embodiment 1, in Specific Embodiment 2, the second connecting component 2 is no longer a passive linkage, but includes a second swing arm 22 and a second connecting member 21: the first end of the second swing arm 22 is connected to the base 10 via a revolute joint, and the second end is connected to the first end of the second connecting member 21 via a ball joint or revolute joint; the second end of the second connecting member 21 is connected to the rear center of the base 20 via a ball joint; the second driving member 32 is mounted on the base 10 and driven to the second swing arm 22, for actively controlling the lifting and lowering of the rear of the base 20. The remaining structure is the same as in Specific Embodiment 1.

[0116] The operation process of specific embodiment two: Locking state: In addition to the two first drive members 301 on the front side locking their respective first swing arms 12, the second drive member 32 on the rear side simultaneously locks the second swing arm 22, thus fixing the position of the second connecting member 21; thereby, the three points at the front and rear of the base 20 are rigidly constrained, the overall locking stiffness of the system is higher, and the anti-disturbance ability is enhanced.

[0117] Second direction Y-axis attitude compensation state (right side raised), refer to Figure 19 The first driving member 301 on the right side drives the first swing arm 12 on the right side to rotate upward, raising the lower end of the first connecting member 11 on the right side and lifting the front right side of the base 20. Simultaneously, the second ball joint 52 in the middle of the base 20 slides upward along the third connecting member 31. Furthermore, the base 20 and each of the first ball joints 42 rotate to varying degrees. Overall, the front right side of the base 20 is lifted, and the seat tilts to the left along the second direction Y and backward along the first direction X. When the base 20 is in a high position, the first driving member 301 on the left side can drive the first swing arm 12 on the left side to swing downward, achieving the same effect. During this process, the second driving member 32 at the rear end can drive the second swing arm 22 to rotate upward and lift the second connecting member 21, thereby reducing the tilt of the base 20 in the first direction X.

[0118] Second direction Y-axis attitude compensation state (left side raised), refer to Figure 20 The first drive member 301 on the left side drives the first swing arm 12 on the left side to rotate upward, raising the lower end of the first connecting member 11 on the left side and causing the left end of the base 20 to lift. Simultaneously, the second ball joint 52 in the middle of the base 20 slides upward along the third connecting member 31. Furthermore, the base 20 and each of the first ball joints 42 rotate to varying degrees. Overall, the front left end of the base 20 is lifted, and the seat tilts to the right along the second direction Y and backward along the first direction X. When the base 20 is in a high position, the first drive member 301 on the right side can drive the first swing arm 12 on the right side to swing downward, achieving the same effect. During this process, the second drive member 32 at the rear end can drive the second swing arm 22 to rotate upward and lift the second connecting member 21, thereby reducing the tilt of the base 20 in the first direction X.

[0119] First direction X attitude compensation state, reference Figure 21 The first drive members 301 on the left and right sides drive the first swing arms 12 on the left and right sides to rotate upwards simultaneously, raising the lower ends of the first connecting members 11 on the left and right sides, which in turn raises the front end of the base 20. At the same time, the base 20, together with the second ball head 52, slides upwards along the third connecting member 31. With the front end of the base 20 raised, the seat tilts backwards along the first direction X with the base 20. When the base 20 itself is in a high position, the same effect can be achieved by driving the second swing arm 22 on the rear side to swing downwards through the second drive member 32 on the rear side.

[0120] Height adjustment state: All driving components drive all swing arms to rotate upward simultaneously, and the lower ends of all connecting parts are lifted simultaneously, causing the base 20 to rise upward. At the same time, the middle part of the base 20, together with the second ball head 52, slides upward along the third connecting part 31, and the seat rises vertically upward along the third direction Z with the base 20.

[0121] Vibration damping: When the seat experiences a height change in the third direction (Z) due to vehicle body vibration, all swing arms and linkages can be driven to reduce or eliminate the height change of the base 20 in the third direction (Z), ensuring ride comfort.

[0122] Key technical points of specific embodiment two: This embodiment employs a layout of three ball joint rods (i.e., two first connecting parts 11 and one second connecting part 21) in conjunction with a central ball joint tube: the two ends of the first connecting part 11 are connected to the base 10 and the base 20 respectively through the first ball joint structure 4; the second connecting part 21 is connected to the base 20 through the first ball joint structure 4; and the third connecting part 31 is connected to the base 20 through the second ball joint structure 5. This ensures that each connection point can achieve multi-directional rotational freedom during any posture adjustment process, effectively releasing motion interference. At the same time, the first end of the central ball joint tube is rigidly fixed to the base 10, and the second end is connected to the middle of the base 20 through the second ball joint structure 5. While providing a third-direction Z-displacement channel, it also serves as an approximate spatial rotation center, applying geometric constraints to the overall motion of the base 20, and achieving effective positioning and locking of the mechanism in the drive-locked state.

[0123] The seat base 20 is equipped with three independently controlled motors (i.e., two first drive units 301 and one second drive unit 32), which drive the front left and right first swing arms 12 and the rear second swing arm 22 respectively. Through the coordinated or differential control of the three motors, the seat base 20 can achieve: tilt adjustment around the X-axis (second direction Y), with an angle range of 0°~12°; pitch adjustment around the Y-axis (first direction X), with an angle range of 0°~11°; and any composite tilt posture in the XY plane (such as left front lifting, right rear sinking, and other composite working conditions), meeting the dynamic posture adaptation requirements under complex road conditions.

[0124] The seat load is primarily transmitted to the three ball joints via the base 20, and ultimately acts on the three swing arms (two first swing arms 12 and one second swing arm 22). The three motors not only provide active driving force but also provide static support force in the locked state. Since the three motors share the component of the seat load along their respective push rod axes, the axial load on a single motor is significantly reduced. Simultaneously, the motors operate under compression / tension, resulting in a direct force path and high structural efficiency, thereby improving the system's load-bearing capacity, operational stability, and long-term reliability.

[0125] The three motors provide the locking force for the swing arm. The load of the seat is transmitted to the swing arm through the ball joint and decomposed into an axial component along the push rod direction, which is borne by the three motors. The load of a single unit is small and it is only subjected to axial force, with no lateral bending moment, resulting in high structural reliability.

[0126] Specific Implementation Example 3: Reference Figures 25 to 30 Based on the "central ball joint tube + three ball joint rod + dual drive" architecture in specific embodiment one, it further integrates elastic component 50 and damping component 60 to realize active and controllable vibration reduction functions in the first direction X attitude compensation, the second direction Y attitude compensation and the third direction Z.

[0127] Specifically, an elastic component 50 and a damping component 60 (magnetorheological damper) are added to the base 20. The lower end of the elastic component 50 is fixedly connected to the base 20, and the upper end is fixedly connected to the seat frame 40, providing elastic support in the third direction Z. One end of the damping component 60 is hinged to the base 20 via a revolute joint, and the other end is hinged to any link in the linkage mechanism between the seat frame 40 and the base 20 via a revolute joint. The linkage mechanism includes a first link 61, a second link 62, a third link 63, and a fourth link 64. The two ends of each link are respectively connected to the base 20 and the seat frame 40 via revolute joints, forming a four-bar linkage. For example, the magnetorheological damper can be hinged to the extension of the second link 62 (such as the left front link), but other links can also be selected at any position to adapt to different layout requirements.

[0128] The operation process of specific embodiment three: Locked state: Same as in Specific Embodiment 1.

[0129] Second direction Y-axis attitude compensation state (right side lift): Same as in specific embodiment one.

[0130] Second direction Y-axis attitude compensation state (left side lift): Same as in specific embodiment one.

[0131] First direction X attitude compensation state: Same as in specific embodiment one.

[0132] Vibration reduction status: Reference Figure 29 When the base 10 changes height along the third direction Z due to vehicle vibrations, the length of the elastic component 50 (such as a gas spring) changes accordingly, absorbing kinetic energy impact and maintaining the stability of the base 20. (Reference) Figure 30 When there is a large amplitude in the third direction Z, the damping component 60 increases the damping force according to the control system command, increases the support force of the base 20, and prevents the gas spring assembly from being over-compressed or stretched, thereby maintaining the stability of the base 20.

[0133] Key technical points of specific embodiment three: The system employs a three-ball hinge connection with a central ball hinge tube for limiting the movement. The first ball head 42 in each ball hinge structure ensures multi-directional rotational freedom, while the central ball hinge tube provides overall positioning and constraint for the mechanism in the locked state.

[0134] Driven by dual motors, the seat can tilt left and right around the X-axis (0°~12°), tilt backward around the Y-axis (0°~11°), and any composite tilt posture in the XY plane.

[0135] Two motors provide the locking force for the swing arm. The seat load is transmitted to the swing arm via the ball joint and decomposed into component forces along the push rod axis, which are borne by the two motors. The load of a single unit is small, and it only bears axial force without lateral bending moment, resulting in high structural reliability.

[0136] The seat frame 40 integrates a gas spring and a magnetorheological damper through a four-bar linkage mechanism. The two work together to achieve vibration reduction in the third direction (Z direction).

[0137] Specific Implementation Example 4: Reference Figures 31 to 37 It adopts a layout of "central ball joint tube + four ball joint rods + four drives", which can realize the first direction X attitude compensation, the second direction Y attitude compensation, horizontal rotation around the Z axis and the third direction Z overall height adjustment function.

[0138] The mechanism includes a base 10, a base 20, five connecting components connecting the two, and four driving components. The five connecting components include: two first connecting components 1, two second connecting components 2, and one third connecting component 3; wherein the two first connecting components 1 are symmetrically arranged on the front side of the base 10, the two second connecting components 2 are symmetrically arranged on the rear side of the base 10, and the third connecting component 3 is located at the center of the base 10 in the front-to-back direction. Correspondingly, the system is equipped with two first driving components 301 and two second driving components 32, which are used to drive the front first connecting components 1 and the rear second connecting components 2, respectively.

[0139] The operation process of specific embodiment four: Locked state: The two first drive members 301 and the two second drive members 32 lock the corresponding first swing arm 12 and second swing arm 22 respectively, so that the lower ends of all first connecting members 11 and second connecting members 21 are fixed; at the same time, the middle part of the base 20 forms a constraint with the third connecting member 31 through the second ball head 52, which restricts the relative displacement of each moving link, and the whole system is in a rigid locked state, and the seat posture remains stable.

[0140] Second direction Y-attitude compensation state, reference Figure 32The right front and right rear swing arms rotate upwards, raising the lower ends of the right front and right rear connecting parts, which in turn raises the right end of the base 20. At the same time, the middle part of the base 20, along with the second ball joint 52, slides upwards along the third connecting part 31. In addition, the base 20 and each of the first ball joints 42 rotate to different degrees. Overall, the right end of the base 20 is raised, and the seat tilts to the left along the second direction Y with the base 20.

[0141] Second direction Y-attitude compensation state, reference Figure 33 The left front and left rear swing arms rotate upwards, raising the lower ends of the left front and left rear connecting parts, which in turn raises the left end of the base 20. At the same time, the middle part of the base 20, along with the second ball head 52, slides upwards along the third connecting part 31. In addition, the base 20 and each of the first ball heads 42 rotate to different degrees. Overall, the left end of the base 20 is raised, and the seat tilts to the right along the second direction Y with the base 20.

[0142] Second direction Y-attitude compensation state, reference Figure 34 The left and right front swing arms rotate upwards, raising the lower ends of the left and right front connectors, which in turn raises the front end of the base 20. Simultaneously, the middle part of the base 20, along with the second ball joint 52, slides upwards along the third connector 31. In addition, the base 20 and each of the first ball joints 42 rotate to varying degrees. Overall, the front end of the base 20 is raised, and the seat tilts backwards along the first direction X with the base 20.

[0143] Adjust the status, refer to Figure 35 All swing arms rotate upwards, the lower ends of all first and second connecting parts are lifted, causing the base 20 to lift. At the same time, the middle part of the base 20, together with the second ball head 52, slides upwards along the third connecting part 31, and the entire base 20 is lifted. The seat is lifted upwards along the third direction Z with the base 20.

[0144] Rotation state, reference Figure 36 The right front and left rear swing arms rotate upward, the lower ends of the right front and left rear connectors are raised, which drives the right front end and left rear end of the base 20 to rise. At the same time, the middle part of the base 20, together with the second ball head 52, slides upward along the third connector 31, which drives the left front end and right rear end of the base 20 to rise. The left front and right rear swing arms remain stationary, causing the base 20 to rotate counterclockwise around the third connector 31. The seat rotates to the left along with the base 20 around the third connector 31.

[0145] Rotation state, reference Figure 37 The left front and right rear swing arms rotate upward, the lower ends of the left front and right rear connectors are lifted, which drives the left front end and right rear end of the base 20 to lift. At the same time, the middle part of the base 20, together with the second ball head 52, slides upward along the third connector 31, which drives the right front end and left rear end of the base 20 to lift. The right front and left rear swing arms remain stationary, causing the base 20 to rotate clockwise around the third connector 31. The seat rotates to the right along with the base 20 around the third connector 31.

[0146] This disclosed embodiment solves the problems of high load on seat motors with first-direction X-axis posture compensation and second-direction Y-axis posture compensation in related technologies; the inability to integrate height adjustment function into seats with first-direction X-axis posture compensation and second-direction Y-axis posture compensation; and the large installation space required under seats with first-direction X-axis and second-direction Y-axis posture compensation and vibration reduction functions. It can meet multiple adjustment needs (sharp cornering posture compensation, emergency braking posture compensation, vibration reduction, height adjustment, rotation); meet the vehicle's requirements for low floor height and compact layout; and has high structural stability.

[0147] Some embodiments of this disclosure also provide a vehicle including a floor and the aforementioned vehicle seat, wherein the base 10 of the vehicle seat is fixedly or slidably (e.g., sliding back and forth) or rotatably (rotating about the Z-axis) disposed on the floor.

[0148] In some embodiments, the base 10 of the vehicle seat is slidably disposed on the floor, the floor having a lower slide rail, and the base 10 also includes an upper slide rail that cooperates with the lower slide rail.

[0149] It should be noted that the "first ball joint structure 4" in this embodiment refers to a ball joint connection structure, which includes a first ball head 42, a first ball seat 41, and a through member 43 for axial positioning. The first ball head 42 is disposed in the inner spherical cavity of the first ball seat 41, and achieves omnidirectional rotation through the through member 43 and the U-shaped groove. In this embodiment, multiple connection parts (such as between the first connecting member 11 and the base 20, between the first connecting member 11 and the first swing arm 12, and between the second connecting member 21 and the base 20) all adopt the same ball joint connection method, that is, all adopt the "first ball joint structure 4". It should be noted that "first ball joint structure 4" here indicates the consistency of structural form, rather than referring to the same physical ball joint; the first ball joint structure 4 used at each position is an independent component, and they may only be the same in structure and function. Similarly, for a revolute joint, it refers to a hinge method, rather than referring to the same physical ball joint, and the revolute joint used at each position is an independent component.

[0150] Based on the embodiments disclosed above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0151] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A vehicle seat, characterized in that, include: Base (10); The base (20) is movably disposed on the base (10); Two first connecting components (1) are spaced apart on the first side of the base (10). Each first connecting component (1) includes a first connector (11). The first end of the first connector (11) is connected to the base side through a ball joint structure, and the second end is connected to the base side through a ball joint structure. The second connecting component (2) is disposed on the second side of the base (10), the second side being disposed opposite to the first side. The second connecting component (2) includes at least a second connector (21). The first end of the second connector (21) is connected to the base side via a rotating pair or ball joint structure, and the second end is connected to the base side via a ball joint structure. The third connecting component (3) is disposed between the first side and the second side of the base (10). The third connecting component (3) includes a third connector (31). The first end of the third connector (31) is connected to one of the base (10) and the base (20), and the second end is connected to the other of the base (10) and the base (20) through a ball joint structure. as well as The force-applying element (30) is configured to provide a force to suppress the attitude change when the base (20) changes attitude relative to the base (10).

2. The vehicle seat according to claim 1, characterized in that, The force-applying component (30) includes at least one of an active force-applying component and a passive force-applying component.

3. The vehicle seat according to claim 1, characterized in that, Each of the first connecting components (1) is provided with a force-applying component (30) at its location.

4. The vehicle seat according to claim 3, characterized in that, The second side of the base (10) is provided with a second connecting component (2), and a force-applying component (30) is provided at the location of the second connecting component (2).

5. The vehicle seat according to claim 3, characterized in that, The second side of the base (10) is provided with two second connecting components (2) spaced apart, and each second connecting component (2) is provided with a force-applying component (30) at its location.

6. The vehicle seat according to any one of claims 1 to 5, characterized in that, Also includes: A seat frame (40) is provided on the base (20); as well as At least one of the elastic component (50) and the damping component (60) is disposed between the base (20) and the seat frame (40).

7. The vehicle seat according to any one of claims 1 to 5, characterized in that, Each of the first connecting components (1) further includes a first swing arm (12), the first end of which is connected to the base (10) via a revolute joint, and the second end of which is connected to the first end of the first connector (11) via a ball joint structure.

8. The vehicle seat according to claim 7, characterized in that, The force-applying component (30) includes two first driving components (301), each of which is connected to a first swing arm (12).

9. The vehicle seat according to claim 8, characterized in that, The second connecting component (2) further includes a second swing arm (22), the first end of which is connected to the base (10) via a revolute joint, and the second end of which is connected to the first end of the second connecting member (21) via a ball joint structure or a revolute joint.

10. The vehicle seat according to claim 9, characterized in that, The force-applying component (30) includes a second driving component (32), which is driven and connected to the second swing arm (22).

11. The vehicle seat according to claim 8, characterized in that, The base (10) has two second connecting components (2) spaced apart on its second side. Each second connecting component (2) also includes a second swing arm (22). The first end of the second swing arm (22) is connected to the base (10) via a rotating joint. The second end of the second swing arm (22) is connected to the first end of the second connector (21) via a ball joint structure.

12. The vehicle seat according to claim 11, characterized in that, The force-applying component (30) includes two second driving components (32) spaced apart, each of which is connected to a second swing arm (22).

13. The vehicle seat according to claim 1, characterized in that, The ball joint structures at the first and second ends of the first connector (11) and the ball joint structures at the first and second ends of the second connector (21) are both first ball joint structures (4).

14. The vehicle seat according to claim 13, characterized in that, Two ear plates are provided at intervals on the base side and / or the base side, and the first ball joint structure (4) includes: The first ball seat (41) is constructed as a ring, fixedly disposed at the end of the first connector (11) or the second connector (21), and installed between the two ear plates; The first ball head (42) is located inside the first ball seat (41), and the first ball head (42) is provided with a through hole; The through-piece (43) has a limiting part at one end, which is located on the outside of an ear plate. The other end of the through-piece (43) passes through the ear plate, the through hole of the first ball head (42), and the other ear plate in sequence, and is fixedly connected to the other ear plate. The diameter of the through hole of the first ball head (42) is larger than the diameter of the rod of the through-piece (43), and the through-piece (43) and the first ball head (42) are in clearance fit.

15. The vehicle seat according to claim 1, characterized in that, The first end of the third connector (31) is fixedly connected to one of the base (10) and the base (20), and the second end of the third connector (31) is connected to the other of the base (10) and the base (20) via a second ball joint structure (5); the second ball joint structure (5) includes: The second ball seat (51) is constructed as a ring and is fixedly installed on the base (20) or the base (10). The second ball head (52) has a through hole and is located inside the second ball seat (51); The second end of the third connector (31) passes through the through hole of the second ball head (52) and is inserted into the base (20) or the base (10). The diameter of the through hole of the second ball head (52) is larger than the outer diameter of the third connector (31). The second ball head (52) and the third connector (31) can slide axially relative to each other.

16. The vehicle seat according to claim 1, characterized in that, The first end of the third connector (31) is movably connected to one of the base (10) and the base (20) relative to each other, and the second end of the third connector (31) is connected to the other of the base (10) and the base (20) via a second ball joint structure (5). The second ball joint structure (5) includes: The second ball seat (51) is constructed as a ring and is fixedly installed on the base (20) or the base (10). The second ball head (52) has a through hole and is located inside the second ball seat (51); The second end of the third connector (31) passes through the through hole of the second ball head (52) and is fixedly connected to the second ball head (52).

17. The vehicle seat according to claim 10, characterized in that, At least one of the first drive member (301) and the second drive member (32) is connected to a lead screw (33), and a threaded transmission member (34) is threadedly installed on the lead screw (33). The threaded transmission member (34) is rotatably connected to the first swing arm (12) or the second swing arm (22) on the corresponding side through a rotating pair.

18. A vehicle, characterized in that, Includes a floor and a vehicle seat according to any one of claims 1 to 16, wherein the base (10) of the vehicle seat is fixedly or slidably or rotatably disposed on the floor.

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