Seat adjustment device and vehicle

Abstract

The embodiment of the application relates to the technical field of vehicle equipment, and discloses a seat adjusting device and a vehicle. A first support of the seat adjusting device is used to be connected with a vehicle body, a second support is used to be connected with a seat, the second support is relatively rotated with the first support, an adjusting mechanism is arranged in the first support and connected with the second support, a pulling mechanism is connected with the adjusting mechanism, and the pulling mechanism is used to drive the adjusting mechanism under the action of external force, so that the adjusting mechanism drives the second support to fold or unfold the seat. The seat adjusting device provided by the application has higher integration, reduces the occupation of the surface area of the seat, and improves the aesthetic degree of the surface of the seat.

Description

Technical Field

[0001] This application relates to the field of vehicle equipment technology, and in particular to a seat adjustment device and a vehicle. Background Technology

[0002] The seats in the vehicle's passenger compartment can be folded and adjusted to allow them to be unfolded or laid flat.

[0003] Seat adjustment devices in related technologies generally consist of buttons and adjustment components. The adjustment components are used to rotate and connect the seat back to the vehicle body. The buttons are located in other positions on the seat and are connected to the adjustment components. By pressing the buttons, the adjustment components can be adjusted, thereby enabling the seat to be folded and unfolded.

[0004] However, the seat adjustment device in the aforementioned related technologies occupies a large surface area and space on the seat, reducing the utilization rate of the seat's surface area and affecting the seat's aesthetics. Utility Model Content

[0005] In view of this, the present application provides a seat adjustment device and a vehicle to solve the technical problem that the seat adjustment device in the above-mentioned related technologies occupies a large surface area and space on the seat, reduces the utilization rate of the seat surface area, and affects the aesthetics of the seat.

[0006] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0007] A first aspect of this application provides a seat adjustment device, comprising:

[0008] The first bracket is used to connect to the vehicle body;

[0009] The second bracket is used to connect the seat, and the second bracket rotates relative to the first bracket.

[0010] An adjustment mechanism is disposed on the first bracket and connected to the second bracket;

[0011] A pulling mechanism is connected to the adjusting mechanism. The pulling mechanism is used to drive the adjusting mechanism under the action of an external force, so that the adjusting mechanism drives the second bracket to fold or unfold the seat.

[0012] The seat adjustment device provided in this application embodiment connects to the vehicle body via a first bracket and to the seat via a second bracket. The relative rotational relationship between the two brackets provides the physical basis for folding or unfolding the seat. The adjustment mechanism is mounted on the first bracket and connected to the second bracket, allowing the drive action to be directly transmitted to the second bracket, thereby reducing intermediate transmission structures and improving overall compactness. The pulling mechanism acts directly on the adjustment mechanism with external force, avoiding the complex operations required for traditional mechanical unlocking and simplifying the user interaction process. The integrated design of the pulling mechanism and the adjustment mechanism, rather than being located at a specific position on the seat, improves the integration of the seat adjustment device and reduces the surface area occupied by the seat, thus increasing the space utilization of the seat surface.

[0013] The first bracket serves as a fixed support between the vehicle body and the seat, ensuring structural stability. The second bracket connects to the seat and adjusts its posture through rotation. The adjustment mechanism, as the core driving component, converts the external force of the pulling mechanism into a drive for the second bracket, completing the folding or unfolding action. The coordinated action of these components ensures the reliability of the locking function, reduces space occupation through integrated design, and the pull-tab unlocking method balances ease of operation and a clean appearance.

[0014] In some embodiments of this application, the first bracket includes a first housing and a second housing;

[0015] The adjustment mechanism is disposed between the first housing and the second housing;

[0016] Both the first housing and the second housing are used to connect the vehicle body;

[0017] The pulling mechanism is located on the side of the first housing facing away from the second housing and is connected to the adjustment structure;

[0018] The second bracket is located on the side of the second housing opposite to the first housing and is connected to the adjustment mechanism.

[0019] In some embodiments of this application, the pulling mechanism includes:

[0020] One end of the connecting rod is rotatably connected to the adjusting mechanism;

[0021] A pull strap connects to the other end of the connecting rod facing away from the adjusting mechanism, with the end of the pull strap away from the connecting rod being the pulling end.

[0022] In some embodiments of this application, a protective shield is also included;

[0023] The protective cover is placed on the outer surface of the first bracket, and the pulling end of the pull strap passes through the protective cover and is located outside the protective cover.

[0024] In some embodiments of this application, a magnetic attraction component is also included;

[0025] The magnetic attachment assembly is used to magnetically connect the pull end and the protective cover.

[0026] In some embodiments of this application, the magnetic attraction component includes:

[0027] A first magnetic component is disposed on the protective cover;

[0028] The second magnetic component is magnetically connected to the first magnetic component and is disposed at the pulling end.

[0029] In some embodiments of this application, the adjustment mechanism includes:

[0030] The fixing part is fixed to the first housing;

[0031] The rotating part is rotatably connected to the fixed part and connected to the second bracket;

[0032] The rotating shaft has one end passing through the first housing and the fixed part and connected to the rotating part, and the other end connected to the connecting rod;

[0033] A locking part is provided on the fixing part, which is used to lock the rotating part and the fixing part relative to each other when the rotating part drives the second bracket and the seat to unfold.

[0034] In some embodiments of this application, the adjustment mechanism further includes a return member, one end of which is connected to the fixing part and the other end of which is connected to the rotating shaft. The return member is used to provide driving force during the unfolding of the seat.

[0035] A second aspect of this application provides a vehicle, which includes a vehicle body, a seat, and a seat adjustment device as described above;

[0036] The vehicle body has a passenger compartment;

[0037] The seat is located in the passenger compartment, and the seat adjustment device is used to rotatably connect the seat to the vehicle body to adjust the folding and unfolding state of the seat.

[0038] In some embodiments of this application, the seat includes a seat cushion and a backrest, the seat cushion being disposed within the vehicle body in the passenger compartment;

[0039] The first bracket of the seat adjustment device is connected to the backrest, and the second bracket of the seat adjustment device is connected to the vehicle body. The seat adjustment device drives the second bracket through the adjustment mechanism to unfold or fold the backrest and the seat cushion. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of a seat and a seat adjustment device provided in an embodiment of this application;

[0041] Figure 2 This is a structural schematic diagram of a seat and seat adjustment device from another angle, provided as an embodiment of this application.

[0042] Figure 3 This is a schematic diagram of the structure of a seat adjustment device provided in an embodiment of this application;

[0043] Figure 4 An exploded view of a seat adjustment device provided in an embodiment of this application;

[0044] Figure 5 A schematic diagram of the structure of the second bracket of a seat adjustment device provided in this application when the backrest is unfolded in the first position;

[0045] Figure 6 This is a schematic diagram of the structure of the second bracket of a seat adjustment device provided in an embodiment of the present application, in which the backrest is folded when in the second position;

[0046] Figure 7 This is a partial cross-sectional view of a seat adjustment device provided in an embodiment of this application.

[0047] Figure label:

[0048] 10. Seat; 11. Backrest; 20. Seat adjustment mechanism;

[0049] 100. First support;

[0050] 110. First shell; 120. Second shell;

[0051] 200. Second support;

[0052] 300. Adjustment mechanism;

[0053] 310. Fixed part; 320. Rotating part; 330. Rotating shaft; 340. Returning part;

[0054] 400. Pulling mechanism;

[0055] 410. Connecting rod; 420. Pull strap;

[0056] 500, protective cover;

[0057] 600. Magnetic assembly;

[0058] 610. First magnetic component; 620. Second magnetic component. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0060] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0061] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0062] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0063] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0064] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0065] The seat adjustment devices in the aforementioned technologies occupy a significant amount of surface area and space on the seat, reducing the utilization rate of the seat's surface area and affecting its aesthetics. This problem arises because traditional solutions typically place the locking mechanism externally or use an independent adjuster structure, requiring additional installation space in the seat back area. During the development of a new energy vehicle, it was discovered that if the adjustment mechanism of the rear middle independent seat uses a traditional external locking solution, it will encroach on the passenger compartment space and affect the seat's aesthetics. Furthermore, the mechanical unlocking handle is inconvenient to operate, failing to meet users' needs for convenience and a clean interior.

[0066] To address the aforementioned issues, this application provides a seat adjustment device and a vehicle. The seat adjustment device is connected to the vehicle body via a first bracket and to the seat via a second bracket. The relative rotational relationship between the two brackets provides the physical basis for folding or unfolding the seat. The adjustment mechanism is mounted on the first bracket and connected to the second bracket, allowing the drive action to be directly transmitted to the second bracket, thereby reducing intermediate transmission structures and improving overall compactness. The pulling mechanism acts directly on the adjustment mechanism with external force, avoiding the complex operations required for traditional mechanical unlocking and simplifying the user interaction process. The integrated design of the pulling mechanism and the adjustment mechanism, rather than being located at a specific position on the seat, improves the integration of the seat adjustment device and reduces the surface area occupied by the seat, thus increasing the space utilization of the seat surface.

[0067] The first bracket serves as a fixed support between the vehicle body and the seat, ensuring structural stability. The second bracket connects to the seat and adjusts its posture through rotation. The adjustment mechanism, as the core driving component, converts the external force of the pulling mechanism into a drive for the second bracket, completing the folding or unfolding action. The coordinated action of these components ensures the reliability of the locking function, reduces space occupation through integrated design, and the pull-tab unlocking method balances ease of operation and a clean appearance.

[0068] The seat adjustment device and vehicle provided in this application will now be described with reference to the accompanying drawings and specific embodiments.

[0069] Reference Figures 1 to 4 This application provides a seat adjustment device 20, which may include a first bracket 100, a second bracket 200, an adjustment mechanism 300, and a pulling mechanism 400.

[0070] Reference Figure 1 and Figure 2 The first bracket 100 is used to connect to the vehicle body. The first bracket 100 refers to the support structure that supports the adjustment mechanism 300 and is rigidly connected to the vehicle body. Specifically, it can be made of metal casting and is fixedly connected to the longitudinal beam of the vehicle body by bolts to provide stable support for the entire device.

[0071] The second bracket 200 is used to connect to the seat 10, and the second bracket 200 rotates relative to the first bracket 100. The second bracket 200 refers to the rotating part 320 that connects to the frame of the seat 10, and can be made of steel plate by stamping.

[0072] Reference Figure 3 and Figure 4 The adjusting mechanism 300 is disposed on the first bracket 100 and connected to the second bracket 200. The adjusting mechanism 300 is a mechanical device that controls the locking state of the rotary joint. Specifically, it can be implemented by an angle adjuster assembly with a ratchet structure, which locks the angle through internal gear meshing.

[0073] The pulling mechanism 400 is connected to the adjusting mechanism 300. The pulling mechanism 400 is used to drive the adjusting mechanism 300 under the action of external force, so that the adjusting mechanism 300 drives the second bracket 200 to fold or unfold the seat 10. The pulling mechanism 400 refers to the transmission component that transmits the operating force. Specifically, it can be implemented by a combination structure of nylon braided pull strap 420 and metal connecting rod 410, which converts the external pulling force into the action of unlocking the angle adjuster.

[0074] Specifically, when the seat 10 needs to be folded, the operator pulls the end of the strap 420 outward. This pulling force is transmitted to the adjuster pivot 330 through the connecting rod 410, forcing the ratchet mechanism to disengage. At this time, the second bracket 200 releases the angle lock, and the seat back 11 rotates and folds forward around the pivot 330 under the action of gravity. When the seat 10 needs to be unfolded, the backrest 11 is pushed in the opposite direction to return it to the designed angle, and the spring inside the adjuster pushes the ratchet to re-engage and lock. Throughout the process, the adjustment mechanism 300 is completely integrated inside the first bracket 100, without occupying additional space around the seat 10. The pulling mechanism 400 unlocks through linear traction, and the operation path is intuitive and clear.

[0075] Reference Figure 2 and Figure 5 In some embodiments, when the second support 200 is in the position under the action of the adjustment mechanism 300 Figure 5 When in the first position, the pulling mechanism 400 is not subjected to external force, and the second bracket 200 controls the backrest 11 of the seat 10 to be in the unfolded state. At this time, the adjustment mechanism 300 can lock and control the backrest 11 to prevent it from rotating.

[0076] Reference Figure 2 and Figure 6 In some embodiments, when the adjustment mechanism 300 is unlocked and rotated under the action of the pulling mechanism 400, the adjustment mechanism 300 drives the second bracket 200 to rotate to the second position, and the second bracket 200 drives the backrest 11 to flip and fold, so that the backrest 11 of the seat 10 is folded.

[0077] The seat adjustment device 20 provided in this application embodiment is connected to the vehicle body via a first bracket 100 and to the seat 10 via a second bracket 200. The relative rotational relationship between the two brackets provides the physical basis for folding or unfolding the seat 10. The adjustment mechanism 300 is disposed on the first bracket 100 and connected to the second bracket 200, allowing the driving action to be directly transmitted to the second bracket 200, thereby reducing intermediate transmission structures and improving overall compactness. The pulling mechanism 400 acts directly on the adjustment mechanism 300 through external force, avoiding the complex operations required for traditional mechanical unlocking and simplifying the user interaction process. The integrated design of the pulling mechanism 400 and the adjustment mechanism 300, rather than being located at a specific position on the seat 10, improves the integration of the seat adjustment device 20 and reduces the surface area occupied by the seat 10, thus increasing the space utilization of the seat 10 surface.

[0078] The first bracket 100 serves as a fixed support between the vehicle body and the seat 10, ensuring structural stability. The second bracket 200 connects to the seat 10 and adjusts its posture through rotation. The adjustment mechanism 300, as the core driving component, converts the external force from the pulling mechanism 400 into a drive for the second bracket 200, completing the folding or unfolding action. The coordinated action of these components ensures the reliability of the locking function while reducing space occupation through integrated design. Furthermore, the pull-tab unlocking method (420-type) balances ease of operation and a clean appearance.

[0079] Reference Figure 4 and Figure 5 In some embodiments, the first support 100 may include a first housing 110 and a second housing 120.

[0080] The adjustment mechanism 300 is disposed between the first housing 110 and the second housing 120. Both the first housing 110 and the second housing 120 are used to connect the vehicle body. The pulling mechanism 400 is disposed on the side of the first housing 110 facing away from the second housing 120 and is connected to the adjustment mechanism. The second bracket 200 is located on the side of the second housing 120 facing away from the first housing 110 and is connected to the adjustment mechanism 300.

[0081] The first housing 110 is a rigid support component connected to the vehicle body, which can be formed by welding stamped steel plates and serves to provide a mounting base for the adjustment mechanism 300 and distribute mechanical loads. The second housing 120 is a support component symmetrically arranged with the first housing 110, which can be fixed to the first housing 110 with bolts to form a closed cavity to accommodate the adjustment mechanism 300. The adjustment mechanism 300 is positioned between the first housing 110 and the second housing 120 by embedding a gear transmission assembly or linkage mechanism into the cavity formed by the two housings, and positioning of the moving parts is achieved through the gap between the housings.

[0082] This technical solution breaks down the first support 100 into two housings to form a split structure, with the adjustment mechanism 300 housed between the two housings. This achieves a compact layout of the mechanical structure, provides physical shielding for the internal mechanisms through the housings, and facilitates the installation, disassembly, and maintenance of the adjustment mechanism 300. The first housing 110 and the second housing 120 simultaneously serve as the vehicle body connection, providing dual support for the overall rigidity of the device.

[0083] The pulling mechanism 400 is positioned on the outside of the first housing 110, away from the second housing 120. This avoids motion interference with the adjustment mechanism 300 and provides a mounting base for the subsequent external protective cover 500. The second bracket 200 is confined to the outside of the second housing 120, forming an independent force-bearing interface for connection with the seat 10. Simultaneously, the housing isolates the adjustment mechanism 300 from direct contact with the seat 10, reducing the risk of wear. This split-housing layout not only optimizes space utilization.

[0084] Reference Figure 4 In some embodiments, the adjustment mechanism 300 may include a fixed part 310, a rotating part 320, a rotating shaft 330, and a locking part.

[0085] The fixing part 310 is fixed to the first housing 110, and the rotating part 320 is rotatably connected to the fixing part 310 and connected to the second bracket 200. One end of the rotating shaft 330 passes through the first housing 110 and the fixing part 310 and is connected to the rotating part 320, and the other end is connected to the connecting rod 410. A locking part is provided on the fixing part 310 to lock the rotating part 320 and the fixing part 310 relative to each other when the rotating part 320 drives the second bracket 200 and the seat 10 to unfold.

[0086] The fixed part 310 refers to the support structure rigidly connected to the first housing 110. Specifically, it can be a stamped metal sheet bolted to the housing, providing a stable rotation fulcrum for the rotating part 320. The rotating part 320 refers to the rotating component rigidly connected to the second bracket 200. Specifically, it can be a casting with a gear structure that engages with the keyway of the rotating shaft 330, transmitting torque from the rotating shaft 330 to the second bracket 200. The rotating shaft 330 is a transmission component passing through the housing and the fixed part 310. Specifically, it can be a stepped shaft structure, with its large end interference-fitted with the rotating part 320 and its small end threaded and bolted to the connecting rod 410, converting external tension into unlocking torque for the rotating part 320. The locking part is the mechanism for locking the rotating part 320 and the fixed part 310. Specifically, it can be a spring-loaded pawl that engages with the toothed groove of the fixed part 310, automatically triggering the lock when the seat 10 is extended to a set angle.

[0087] This technical solution forms a supporting foundation through the rigid connection between the fixed part 310 and the first housing 110, providing a stable rotation fulcrum for the rotating part 320. The linkage design between the rotating part 320 and the second bracket 200 allows the second bracket 200 to move synchronously when the seat 10 unfolds or folds. The rotating shaft 330 passes through the structure of the first housing 110 and the fixed part 310, realizing both the mechanical linkage between the rotating part 320 and the connecting rod, and ensuring the stability of the force transmission path through the through-type design. The locking part rigidly locks the rotating part 320 and the fixed part 310 when the seat 10 is unfolded, directly solving the problem that traditional hinge structures cannot automatically maintain the unfolded state. Its locking function is integrated with the angle adjuster mechanism, avoiding additional space occupation of the seat 10. The connection between the rotating shaft 330 and the connecting rod converts the external pulling force into the unlocking driving force of the rotating part 320, forming a closed-loop control of mechanical linkage.

[0088] Reference Figure 5 In some embodiments, the adjustment mechanism 300 may further include a return member 340, one end of which is connected to the fixing part 310 and the other end is connected to the rotating shaft 330. The return member 340 is used to provide driving force during the unfolding of the seat 10.

[0089] This technical solution constructs a mechanical energy storage and release system by setting a return member 340 between the fixed part 310 and the rotating shaft 330. One end of the return member 340 is fixed to the stationary fixed part 310, and the other end is connected to the rotating shaft 330, forming a torque transmission path. When the seat 10 is in the folded state, the external force drives the rotating shaft 330 to rotate, which stretches or compresses the return member 340 to store elastic potential energy; during the unlocking and unfolding process, the return member 340 releases the stored energy and converts it into the rotational driving force of the rotating shaft 330, assisting the personnel in pushing the second support 200 to its original position.

[0090] This design enables the pivot 330 to simultaneously possess both passive adjustment and active drive functions, ensuring damping control during folding and saving physical effort during unfolding. The connection point of the return element 340 is chosen to be the fixed part 310 rather than the housing, avoiding the impact of housing deformation on the transmission of driving force and ensuring the stability of the torque transmission path. Through the pre-tension design of the elastic element, the unfolding speed and termination position can be precisely controlled, ensuring that the seat 10 accurately reaches the working range of the locking part after unfolding.

[0091] Reference Figure 5 and Figure 6 In some embodiments, the pulling mechanism 400 may include a connecting rod 410 and a pull strap 420. One end of the connecting rod 410 is rotatably connected to the adjusting mechanism 300, and the pull strap 420 is connected to the other end of the connecting rod 410 facing away from the adjusting mechanism 300. The end of the pull strap 420 away from the connecting rod 410 is the pulling end.

[0092] The connecting rod 410 is a rigid force transmission component, which can be made of metal or engineering plastic rods, and its rotating connection is equipped with a shaft hole fit structure. This component effectively transmits the operating force to the adjusting mechanism 300 through leverage, avoiding force transmission loss caused by flexible connections. The pull strap 420 is a flexible traction component, which can be made of nylon braided strap or polyester fiber strap, and its end is equipped with a ring fastener or metal connector. This component allows free movement of the operating end through its flexibility, and forms a separate structure with the connecting rod 410, which facilitates the formation of a natural force application angle during operation.

[0093] This technical solution utilizes a rotating connection design between the connecting rod 410 and the adjusting mechanism 300 to effectively convert external force into driving action of the adjusting mechanism 300. As a rigid force transmission component, the connecting rod 410 can precisely transmit the traction force applied by the pull belt 420 to the adjusting mechanism 300, avoiding force transmission deviations caused by direct connection with the flexible pull belt 420.

[0094] The pull strap 420 is made of flexible material and connected to the end of the connecting rod 410. Its pull end away from the connecting rod 410 forms a free operating part. This split structure not only ensures the flexible movement of the operating end, but also amplifies the operating force through the leverage effect of the connecting rod 410.

[0095] In particular, the layout design of the pull end being far away from the connecting rod 410 allows the pull strap 420 to form a natural downward force direction during operation, which is both ergonomic and convenient for subsequent installation of magnetic fixing points, thereby maintaining the integrity of the device's appearance when not in use.

[0096] Reference Figure 4 and Figure 7 In some embodiments, the seat adjustment device 20 may also include a protective cover 500, which covers the outer surface of the first bracket 100, and the pull end of the pull strap 420 passes through the protective cover 500 and is located outside the protective cover 500.

[0097] The protective cover 500 refers to the shell structure covering the outside of the bracket. Specifically, it can be made of injection-molded plastic, with its inner surface shape matching the outer contour of the first bracket 100. It is fixed to the bracket surface by screws or clips, forming a physical shield for the internal mechanical structure. The pulling end refers to the part at the end of the pull strap 420 where the user applies force. Specifically, it can be made by attaching a metal ring or plastic handle to the end of a nylon webbing.

[0098] By adding a protective cover 500 to cover the outer surface of the first bracket 100, physical isolation is formed between the internal adjustment mechanism 300 and the pulling mechanism 400, preventing mechanical parts from being directly exposed and affecting the overall aesthetics. The pulling end of the pull strap 420 is designed to pass through the protective cover 500 and extend to the outside, which not only ensures that the user can directly operate the pull strap 420 to perform the unlocking action, but also forms a guiding structure by wrapping the part of the pull strap 420 that passes through the protective cover 500, ensuring the stability of the movement trajectory of the pull strap 420.

[0099] The protective cover 500 is positioned on the outer surface of the first support 100, precisely covering the mechanical connection parts that need to be shielded. This achieves aesthetic optimization without affecting the normal mechanical transmission function of the device. The design of the pull strap 420 being externally positioned on the protective cover 500 creates spatial separation between the operating interface and the shielding structure, maintaining the integrity of the device's appearance while preserving the ease of human-machine interaction.

[0100] Reference Figure 7 In some embodiments, the seat adjustment device 20 may also include a magnetic component 600 for magnetically connecting the pull end and the protective cover 500.

[0101] This technical solution achieves stable fixation between the end of the pulling mechanism 400 and the protective cover 500 by adding a magnetic suction component 600. The magnetic suction component 600 uses magnetic attraction to firmly adhere the pulling end to the surface of the protective cover 500, allowing the pull strap 420 to maintain a fixed posture when not in use, preventing shaking due to vehicle bumps or external forces, thus maintaining the overall integrity and aesthetics of the device. This design, while ensuring convenient unlocking, replaces the traditional mechanical buckle structure with physical adsorption, simplifying the operation steps and avoiding the visual clutter that exposed parts might cause.

[0102] Reference Figure 7 In some embodiments, the magnetic attraction component 600 may include a first magnetic element 610 and a second magnetic element 620.

[0103] The first magnetic component 610 is disposed on the protective cover 500, and the second magnetic component 620 is magnetically connected to the first magnetic component 610. The second magnetic component 620 is disposed on the pulling end.

[0104] The first magnetic component 610 refers to a magnetic element fixed to the surface of the protective cover 500, which can be implemented using a permanent magnet or an electromagnet, and is used to form a stable magnetic field adsorption area on the surface of the protective cover 500. The second magnetic component 620 refers to a magnetic element installed at the end of the pulling end, which can be implemented using a ferromagnetic material or a permanent magnet, and achieves non-contact fixation through the magnetic force of the first magnetic component 610.

[0105] This technical solution achieves reliable fixation between the pull end and the protective cover 500 through a magnetic attraction structure with dual magnetic components. Specifically, the first magnetic component 610 is integrated into the protective cover 500 to form a fixed magnetic field source, while the second magnetic component 620 is arranged at the end of the pull end to form a movable adsorption unit. The magnetic coupling between the two allows the pull end to automatically adhere to the surface of the protective cover 500 when not in operation. This design avoids the drawbacks of traditional mechanical buckle structures that require manual alignment and solves the problem of the flexible pull strap 420 sagging due to its own weight, resulting in a messy appearance. Through the non-contact connection characteristics of the magnetic components, while ensuring reliable fixation, it also enables quick separation of the pull end, meeting the user's need for convenient one-handed operation.

[0106] This application embodiment also provides a vehicle, which may include a vehicle body, a seat 10, and the aforementioned seat adjustment device 20. The vehicle body has a passenger compartment, the seat 10 is disposed in the passenger compartment, and the seat adjustment device 20 is used to rotatably connect the seat 10 to the vehicle body to adjust the folding and unfolding states of the seat 10.

[0107] In some embodiments, the vehicle may be a gasoline-powered vehicle, or it may be a new energy vehicle, such as a pure electric vehicle (PEV / BEV), a range-extended electric vehicle (REEV), a hybrid electric vehicle (HEV), or a fuel cell electric vehicle. The vehicle may also be any vehicle equipped with a battery.

[0108] This technical solution solves the problems of large space occupation and complex operation of traditional vehicle seat 10 adjustment mechanisms 300 by installing a seat 10 in the passenger compartment and using the seat adjustment device 20 as a rotating connection between the vehicle body and the seat 10. The passenger compartment provides a fixed installation space for the seat 10, and the seat 10 is rotatably connected to the vehicle body through the adjustment device, allowing the seat 10 to switch between folding and unfolding states to meet the needs of flexible space adjustment.

[0109] In seat 10, the seat cushion is fixed to the vehicle body, while the backrest 11 is connected to the adjustment device via a first bracket 100 and a second bracket 200 connected to the vehicle body. This structure allows the adjustment device to act directly on the rotation fulcrum of the backrest 11. By driving the second bracket 200, the backrest 11 rotates around the seat cushion axis, achieving the folding and unfolding action. This design integrates the adjustment device at the pivot 330 between the vehicle body and seat 10, avoiding the addition of extra structures to the seat 10 itself. This maintains the integrity of the seat 10's appearance and ensures that the adjustment process only requires angle control of the backrest 11, making the operation path clear and effortless.

[0110] Reference Figure 1 and Figure 2 In some embodiments, the seat 10 may include a seat cushion and a backrest 11, with the seat cushion disposed within the vehicle body in the passenger compartment. The first bracket 100 of the seat adjustment device 20 is connected to the backrest 11, and the second bracket 200 of the seat adjustment device 20 is connected to the vehicle body. The seat adjustment device 20 drives the second bracket 200 through the adjustment mechanism 300 to unfold or fold the backrest 11 and the seat cushion.

[0111] This technical solution establishes a rotational relationship between the seat 10 and the vehicle body by connecting the first bracket 100 of the seat adjustment device 20 to the backrest 11 and the second bracket 200 to the vehicle body. The seat cushion is fixed inside the passenger compartment of the vehicle body, forming a stable support base; the rigid connection between the first bracket 100 and the backrest 11 allows the adjustment mechanism 300 to directly drive the backrest 11 to move, while the connection between the second bracket 200 and the vehicle body ensures the reliability of the rotation fulcrum.

[0112] The adjustment mechanism 300 drives the second bracket 200 to rotate the backrest 11 around the vehicle body, achieving a dual-state adjustment where the seat cushion remains fixed while the backrest 11 can be folded and unfolded. This split connection structure ensures both the stability of the seat cushion and the independent movement capability of the backrest 11.

[0113] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A seat adjustment device (20), characterized in that, include: The first bracket (100) is used to connect to the vehicle body; The second bracket (200) is used to connect the seat (10), and the second bracket (200) rotates relative to the first bracket (100); An adjustment mechanism (300) is disposed on the first bracket (100) and connected to the second bracket (200); A pulling mechanism (400) is connected to the adjusting mechanism (300). The pulling mechanism (400) is used to drive the adjusting mechanism (300) under the action of an external force, so that the adjusting mechanism (300) drives the seat (10) to fold or unfold by driving the second bracket (200).

2. The seat adjustment device (20) according to claim 1, characterized in that, The first support (100) includes a first housing (110) and a second housing (120); The adjustment mechanism (300) is disposed between the first housing (110) and the second housing (120); Both the first housing (110) and the second housing (120) are used to connect the vehicle body; The pulling mechanism (400) is disposed on the side of the first housing (110) facing away from the second housing (120) and is connected to the adjusting mechanism (300); The second bracket (200) is located on the side of the second housing (120) facing away from the first housing (110) and is connected to the adjustment mechanism (300).

3. The seat adjustment device (20) according to claim 2, characterized in that, The pulling mechanism (400) includes: The connecting rod (410) is rotatably connected at one end to the adjusting mechanism (300); A pull strap (420) is connected to the other end of the connecting rod (410) facing away from the adjusting mechanism (300), and the end of the pull strap (420) away from the connecting rod (410) is the pulling end.

4. The seat adjustment device (20) according to claim 3, characterized in that, It also includes a protective shield (500); The protective cover (500) is placed on the outer surface of the first bracket (100), and the pulling end of the pull strap (420) passes through the protective cover (500) and is located outside the protective cover (500).

5. The seat adjustment device (20) according to claim 4, characterized in that, It also includes a magnetic chuck assembly (600); The magnetic attachment assembly (600) is used to magnetically connect the pull end and the protective cover (500).

6. The seat adjustment device (20) according to claim 5, characterized in that, The magnetic attraction assembly (600) includes: A first magnetic element (610) is disposed on the protective cover (500); The second magnetic element (620) is magnetically connected to the first magnetic element (610), and the second magnetic element (620) is disposed at the pull end.

7. The seat adjustment device (20) according to claim 3, characterized in that, The adjustment mechanism (300) includes: The fixing part (310) is fixed to the first housing (110); The rotating part (320) is rotatably connected to the fixed part (310) and connected to the second bracket (200); The rotating shaft (330) has one end passing through the first housing (110) and the fixed part (310) and connected to the rotating part (320), and the other end is connected to the connecting rod (410); A locking part is provided on the fixing part (310) for locking the rotating part (320) and the fixing part (310) relative to each other when the rotating part (320) drives the second bracket (200) and the seat (10) to unfold.

8. The seat adjustment device (20) according to claim 7, characterized in that, The adjustment mechanism (300) further includes a return member (340), one end of which is connected to the fixing part (310) and the other end is connected to the rotating shaft (330). The return member (340) is used to provide driving force during the unfolding of the seat (10).

9. A vehicle, characterized in that, Includes a vehicle body, a seat (10), and a seat adjustment device (20) as claimed in any one of claims 1 to 8; The vehicle body has a passenger compartment; The seat (10) is disposed in the passenger compartment, and the seat adjustment device (20) is used to rotatably connect the seat (10) to the vehicle body to adjust the folding and unfolding state of the seat (10).

10. The vehicle according to claim 9, characterized in that, The seat (10) includes a seat cushion and a backrest (11), the seat cushion being disposed within the vehicle body in the passenger compartment; The first bracket (100) of the seat adjustment device (20) is connected to the backrest (11), and the second bracket (200) of the seat adjustment device (20) is connected to the vehicle body. The seat adjustment device (20) drives the second bracket (200) through the adjustment mechanism (300) to unfold or fold the backrest (11) and the seat cushion.

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