Seat structure and vehicle

Abstract

The application relates to the technical field of vehicles, and provides a seat structure and a vehicle. The seat structure comprises a base, a seat cushion provided on the base through a transmission mechanism, and a first driving part provided on the base and connected with the transmission mechanism. The transmission mechanism comprises a connecting rod assembly provided between the seat cushion and the base, and a transmission rod provided between the first driving part and the seat cushion, and a guide groove for guiding the sliding of the transmission rod is arranged on the base. Moreover, the first driving part can drive the seat cushion to move through the transmission rod, and under the guidance of the guide groove, the seat cushion can slide forward and the front end of the seat cushion can be lifted. The seat structure provided by the application can make the seat reach a preset zero-gravity posture through the transmission rod, the guide groove and the connecting rod assembly, the number of driving sources can be reduced, the seat structure is simple, and better riding comfort can be achieved.

Description

Technical Field

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

[0002] Currently, achieving a zero-gravity posture for a seat relies on the coordinated adjustment of the backrest and seat cushion. This typically requires at least two drive components, along with complex linkages and rotation mechanisms to control the backrest angle and seat cushion position respectively. This structure increases overall complexity and manufacturing costs. Furthermore, the interconnectedness of multiple components is prone to errors, leading to poor structural stability and potential issues such as jamming, wobbling, or even abnormal noises during adjustment. In addition, the rotation of the backrest may shift the spinal support point, affecting seating comfort. Utility Model Content

[0003] In view of this, this application aims to propose a seat structure that can make the seat in a zero-gravity posture simply by adjusting the seat cushion, which has a simple structure and can provide good riding comfort.

[0004] To achieve the above objectives, the technical solution of this application is implemented as follows: A seat structure includes a base, a seat cushion disposed on the base via a transmission mechanism, and a first drive unit disposed on the base and connected to the transmission mechanism; The transmission mechanism includes a connecting rod assembly disposed between the seat cushion and the base, and a transmission rod disposed between the first drive unit and the seat cushion, and a guide groove is provided on the base to guide the transmission rod to slide. The first drive unit can drive the seat cushion to move through the transmission rod, and under the guidance of the guide groove, the seat cushion can slide forward and raise the front end of the seat cushion.

[0005] Furthermore, the guide groove is an arc-shaped groove protruding downwards from the seat cushion; The first drive unit is hinged to the base and is used to output linear power. The transmission rod is connected to the power output end of the first drive unit.

[0006] Furthermore, the seat cushion is provided with a reinforcing rod extending along its width direction, and the reinforcing rod is slidably disposed within the guide groove.

[0007] Furthermore, the cushion is provided with a downwardly extending fixing plate, and the base is provided with an upwardly protruding connecting frame; The connecting frame has the guide groove, and the transmission rod and the reinforcing rod are both disposed on the fixed plate and slidably disposed in the guide groove.

[0008] Furthermore, the connecting frame includes a connecting plate disposed on the base and a guide rail disposed on the connecting plate, the guide groove is disposed on the guide rail, and a clearance hole is provided on the connecting plate; The clearance hole is provided corresponding to the guide groove and is used to avoid the transmission rod and the reinforcing rod. The transmission rod and / or the reinforcing rod are provided with rollers, which are slidably disposed in the guide groove.

[0009] Furthermore, the linkage assembly includes a first linkage and a second linkage respectively hinged to the front and rear ends of the seat cushion; The base is provided with a first sliding groove and a second sliding groove at its front and rear ends, respectively. One end of the first connecting rod is slidably disposed in the first sliding groove, and one end of the second connecting rod is slidably disposed in the second sliding groove.

[0010] Furthermore, there are two first connecting rods arranged opposite each other, and a first linkage rod is provided between the two first connecting rods. The first connecting rods are hinged to the seat cushion through the first linkage rod; and / or, The second link consists of two oppositely arranged links, and a second linkage is provided between the two second links. The second link is hinged to the seat cushion through the second linkage.

[0011] Furthermore, the base includes a first seat body and a second seat body, the second seat body being rotatably mounted on the first seat body, and a second driving part for driving the second seat body to rotate is provided on the first seat body; Both the seat cushion and the first drive unit are located on the second seat body.

[0012] Furthermore, the second drive unit is capable of outputting rotational power, and a drive gear is provided at the power output end of the second drive unit; The second base is provided with a driven gear that meshes with the driving gear.

[0013] Compared with related technologies, this application has the following advantages: (1) The seat structure described in this application, by setting a transmission rod, guide groove and linkage assembly, can realize the compound movement of the seat cushion sliding forward and the front end lifting by using the first drive unit. There is no need to set an additional drive source for the backrest, and a stable switching from the designed position to the zero-gravity posture can be achieved. This makes the seat structure simple, reduces the risk caused by the linkage of multiple parts, and also provides better riding comfort. In addition, the compound movement of the front end lifting and forward sliding of the seat cushion can better conform to the curves of the human buttocks and legs. At the same time, the stable support of the seat cushion by the linkage assembly can enhance the riding comfort of the seat.

[0014] (2) By setting the guide groove to be an arc shape protruding downwards from the seat cushion, the composite motion trajectory of the seat cushion sliding forward and lifting at the front end can be defined, which can effectively avoid deviation and jamming during the adjustment process and help ensure smooth changes in the seat cushion posture. Moreover, the trajectory defined by the arc groove can match the natural curve of the human body when adjusting the sitting posture, which can make the seat cushion support fit the body more closely and further improve the riding comfort.

[0015] (3) By setting up reinforcing bars, the overall rigidity of the seat cushion can be increased, which can more effectively resist the deformation of the seat cushion during adjustment or load-bearing, thereby reducing the relative sliding between the body and the seat cushion and further improving riding comfort. At the same time, the reinforcing bars can also distribute the local pressure of the body weight on the seat cushion frame, reduce the risk of breakage at the seat cushion connection, and extend the service life of the seat cushion.

[0016] (4) By setting a downward-extending fixed plate and an upward-protruding mounting bracket, a transmission space can be formed between the seat cushion and the base. This not only facilitates the arrangement of the transmission rod and reinforcing rod, but also effectively avoids spatial interference between the transmission rod, reinforcing rod and other parts of the seat. At the same time, it also helps to ensure that the adjustment of the transmission rod along the guide groove is not affected by the rotating parts, which helps to improve the space utilization of the overall structure.

[0017] (5) By making the sliding groove of the guide rail cooperate with the rollers on the transmission rod and the reinforcing rod, the sliding friction between the rod and the groove can be converted into rolling friction between the roller and the sliding groove, which can greatly reduce the resistance when the transmission rod and the reinforcing rod move along the guide groove. As a result, there is no need to overcome excessive frictional resistance, which can improve the response speed of the adjustment action and improve the user's operating experience.

[0018] (6) By making the linkage assembly include a first link and a second link that connect the front end and the rear end of the seat cushion respectively, and by defining the sliding path through the first slide groove and the second slide groove on the base, the sliding trajectory of the two links is defined by the slide groove, which can guide the seat cushion to slide forward while forming an ergonomic posture change through the front end being raised and the rear end being relatively lowered, thereby improving riding comfort.

[0019] (7) By setting two oppositely arranged first links, the force on the front mounting plate can be evenly distributed to the first sliding groove of the base, avoiding the mounting plate tilting due to unilateral force on a single first link, thus improving riding safety. Similarly, by setting two oppositely arranged second links, the mounting plate at the rear end can be prevented from tilting due to unilateral force on a single second link, thus improving riding safety.

[0020] (8) By making the base include a first seat body and a second seat body rotatably mounted on the first seat body, the overall angle of the seat can be switched according to usage needs, which can further improve the seating flexibility and comfort of the seat structure. Moreover, the first drive unit and the second drive unit can be independent, without the need for a complex linkage control mechanism, which simplifies the overall structure.

[0021] (9) The gear meshing transmission method can better control the rotation angle of the second seat relative to the first seat, and can effectively avoid problems such as slippage and lag during the adjustment process. At the same time, the rigid contact of the gear meshing can withstand a large load, which helps to ensure that the second seat maintains stable rotation when driving the weight of the seat cushion and the human body, which can reduce shaking or abnormal noise and improve the reliability of posture adjustment.

[0022] Another object of this application is to provide a vehicle having a seat structure according to the embodiment of the first aspect.

[0023] The vehicle described in this application, by setting up the seat structure as described above, can have better riding comfort and improve the riding experience. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the seat structure described in the embodiments of this application under zero gravity conditions; Figure 2 This is a partial structural diagram of the seat structure described in the embodiments of this application in its design state; Figure 3 This is an exploded view of a partial structure of the seat structure described in the embodiment of this application; Figure 4 This is a partial structural diagram of the seat structure described in the embodiments of this application; Figure 5 This is a partial structural diagram of the seat structure described in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the base described in the embodiments of this application; Figure 7 This is an exploded view of the base described in the embodiments of this application; Figure 8 This is an assembly drawing of the first base and the driven gear as described in the embodiments of this application; Figure 9 This is an assembly diagram of the first base and the second motor as described in the embodiments of this application; Figure 10 This is a schematic diagram of the structure of the second seat body described in the embodiments of this application; Figure 11 This is an assembly drawing of the first motor and transmission rod described in an embodiment of this application; Figure 12 for Figure 11 Sectional view of line AA in the middle; Figure 13 This is an exploded view of the first motor, transmission rod, and reinforcing plate described in the embodiments of this application; Figure 14 This is an assembly drawing of the linkage assembly described in the embodiments of this application; Figure 15 This is a diagram showing the installation structure of the first connecting rod as described in an embodiment of this application; Figure 16 This is a diagram showing the installation structure of the second link as described in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures: 1. Base; 2. Seat cushion; 3. First connecting rod; 4. Second connecting rod; 5. First motor; 6. Transmission rod; 7. Reinforcing rod; 8. Connecting frame; 9. Fixing plate; 10. First linkage rod; 11. Front linkage tube; 12. Second linkage rod; 13. Rear linkage tube; 14. Mounting plate; 15. Mounting bracket; 16. Drive gear; 17. Second motor; 18. Roller; 101. First seat; 1011. Longitudinal beam; 1012. Reinforcing beam; 1013. Annular plate; 1014. Bearing plate; 1015. Crossbeam; 102. Second base; 1021. Base plate; 1022. Horizontal plate; 1023. First support plate; 10231. First slide groove; 1024. Second support plate; 10241. Second slide groove; 1025. Mounting bracket; 1026. Driven gear; 801. Connecting plate; 8011. Clearance hole; 802. Guide rail; 1501, base plate; 1502, side plate. Detailed Implementation

[0026] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0030] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0032] An embodiment of the first aspect of this application provides a seat structure that allows the seat to be in a zero-gravity posture simply by adjusting the seat cushion 2. The structure is simple and provides good riding comfort.

[0033] In related technologies, zero-gravity posture is a key direction for improving comfort in seat design. It can mimic the natural state of the human body in a zero-gravity environment, thereby effectively distributing body pressure and reducing spinal burden. To achieve this posture, there are two common methods: one is to use independent drive structures to adjust the backrest angle and seat posture separately, and the other is to use a control module to coordinate and regulate the motion parameters of both to ultimately achieve the preset zero-gravity effect.

[0034] However, employing a dual-adjustment mode for both the backrest and seat cushion 2 requires at least two drive components (such as motors), along with complex linkages and rotation mechanisms to control the backrest angle and seat cushion 2 position separately. This complicates the overall structure of the seat. On one hand, structural complexity directly increases manufacturing costs; on the other hand, the linkage of multiple components is prone to errors, leading to decreased structural stability, such as stuttering, wobbling, or even abnormal noises during adjustment. Furthermore, during backrest rotation, the spinal support point may shift, failing to provide continuous and stable support, thus reducing seating comfort.

[0035] In view of this, in order to overcome the shortcomings of related technologies, the seat structure of this embodiment combines... Figures 1 to 4 As shown, the overall design includes a base 1, a cushion 2 mounted on the base 1 via a transmission mechanism, and a first drive unit mounted on the base 1 and connected to the transmission mechanism.

[0036] The transmission mechanism includes a linkage assembly between the seat cushion 2 and the base 1, and a transmission rod 6 between the first drive unit and the seat cushion 2. A guide groove is provided on the base 1 to guide the transmission rod 6 to slide. Moreover, the first drive unit can drive the seat cushion 2 to move through the transmission rod 6, and under the guidance of the guide groove, the seat cushion 2 can slide forward and raise the front end of the seat cushion 2.

[0037] Therefore, by setting up the transmission rod 6, guide groove, and linkage assembly, the combined motion of the seat cushion sliding forward and lifting the front end can be achieved using the first drive. This eliminates the need for an additional drive source for the backrest, enabling a stable transition from the designed position to a zero-gravity posture. This simplifies the seat structure, reduces the number of drive sources, lowers the risks associated with multi-component linkages, and improves structural stability during seat adjustment. Furthermore, the combined motion of lifting the front end and sliding forward on the seat cushion 2 better conforms to the curves of the buttocks and legs. Combined with the stable support of the linkage assembly for the seat cushion 2, it continuously provides even support to the body during adjustment, enhancing the seat's comfort.

[0038] Based on the above overview, specifically, refer to Figures 1 to 4 As shown, the overall structure of the seat structure in this embodiment is the same as that in the prior art, and the backrest structure and the connection structure between the backrest and the seat cushion 2 can be referred to the conventional settings of vehicle seats in the related art, and will not be described again here.

[0039] Furthermore, the seat structure in this embodiment can serve as a front seat, mounted on a slide rail on the vehicle floor to adjust its fore-and-aft position. In this case, the slide rail can directly utilize a conventional slide rail structure found in existing vehicles. Alternatively, the seat in this embodiment can also serve as a rear seat, directly mounted on the vehicle floor.

[0040] To facilitate understanding of this embodiment, the structure of the base 1 will be described first. In this embodiment, in order to further improve the seating comfort of the seat structure, combined with... Figures 1 to 9 As shown, in some exemplary embodiments, the base 1 includes a first seat body 101 and a second seat body 102, with the second seat body 102 rotatably mounted on the first seat body 101. Furthermore, the first seat body 101 is provided with a second drive unit for driving the second seat body 102 to rotate, and both the aforementioned cushion 2 and the first drive unit are provided on the second seat body 102.

[0041] Here, by including a first seat body 101 and a second seat body 102 rotatably mounted on the first seat body 101 in the base 1, the overall angle of the seat can be switched according to usage needs, further improving the seating flexibility and comfort of the seat structure. Moreover, the first and second drive units can operate independently, eliminating the need for complex linkage control mechanisms. This simplifies the overall structure, reduces the risk of malfunctions caused by interference from multiple components, and also helps ensure a smooth and reliable adjustment process, thereby improving the structural stability and service life of the seat.

[0042] In specific implementation, it can be combined with Figures 6 to 10 As shown, the first seat 101 specifically includes two longitudinal beams 1011 spaced apart, two transverse beams 1015 and two reinforcing beams 1012 connected between the two longitudinal beams 1011, an annular plate 1013 disposed between the two reinforcing beams 1012, and a support plate 1014 disposed on the annular plate 1013. This structure of the first seat 101 not only provides good structural strength and support for the seat cushion 2 and backrest, thus improving seating stability, but also facilitates manufacturing and overall lightweight design.

[0043] The structure of the second seat 102 is as follows Figure 8 and Figure 10 As shown, it includes a base plate 1021 conforming to the annular plate 1013, a mounting bracket 1025 located at the bottom of the base plate 1021 and protruding downwards from the center, and a horizontal plate 1022 located at the top of the base plate 1021 along the left-right direction of the seat cushion 2. The mounting bracket 1025 is rotatably mounted on the first seat body 101, and two horizontal plates 1022 are spaced apart along the front-rear direction of the seat cushion 2. Furthermore, first support plates 1023 are respectively provided at the left and right ends of the front horizontal plate 1022, and second support plates 1024 are respectively provided at the left and right ends of the rear horizontal plate 1022. The aforementioned connecting rod assembly is provided on the first support plates 1023 and the second support plates 1024.

[0044] It should be noted that, in addition to the structure described above, the first seat body 101 and the second seat body 102 of the base 1 can also adopt other structures, as long as they can enable the installation of the seat cushion 2.

[0045] In some exemplary embodiments, the second drive unit is capable of outputting rotational power, and a drive gear 16 is provided at the power output end of the second drive unit, while a driven gear 1026 meshing with the drive gear 16 is provided on the second seat 102. Here, the gear meshing transmission method has the characteristics of a constant transmission ratio and direct power transmission, which can better control the rotation angle of the second seat 102 relative to the first seat 101, effectively avoiding slippage and lag problems during the adjustment process. At the same time, the rigid contact of the gear meshing can withstand a large load, which helps ensure that the second seat 102 maintains stable rotation when driving the seat cushion 2 and the weight of the human body, reducing shaking or abnormal noise and improving the reliability of posture adjustment.

[0046] In addition, the drive gear 16 is directly located at the power output end of the second drive unit, and the driven gear 1026 is integrated into the bottom of the second base 102 and rotates with the first base 101. The two can achieve power transmission by meshing, without the need for additional complex intermediate transmission components, which can reduce the number of parts and simplify the overall structure.

[0047] Meanwhile, because the gear meshing has a reverse self-locking capability, it can stably maintain the current rotation angle when the second drive unit stops working, which can effectively improve the safety of the seat in zero-gravity and other postures. In addition, the uniform speed of the gear transmission can also make the rotation process of the second seat 102 smoother, reduce the impact on the human body when changing postures, and further improve riding comfort.

[0048] In specific implementation, you can refer to Figures 8 to 10 As shown in the figure, the second drive unit in this embodiment is specifically a second motor 17 located at the bottom of the support plate 1014, and the support plate 1014 is provided with a through hole for the drive shaft of the second motor 17 to pass through, and the drive gear 16 is specifically located on the drive shaft.

[0049] And such Figure 9 and Figure 10 As shown, to facilitate the placement of the driven gear 1026 on the second base 102 and its meshing with the driving gear 16, the mounting bracket 1025 of the second base 102 has a downwardly protruding portion in the middle. In this embodiment, the driven gear 1026 is specifically disposed on this protruding portion. At the same time, the provision of this protruding portion can also improve the installation strength of the connecting bracket 8, thereby improving the installation stability of the driven gear 1026.

[0050] In addition, in order to improve the installation strength of the second motor 17, such as Figure 8As shown, a reinforcing plate (not shown) is provided on the top of the support plate 1014, covering the top of the drive gear 16. The second motor 17 is screwed onto the support plate 1014 via a threaded assembly passing through the support plate 1014 and the reinforcing plate, and the drive shaft of the second motor 17 passes through the reinforcing plate.

[0051] This configuration provides better support for the drive shaft of the second motor 17, thereby improving the smoothness of the drive shaft's rotation. This, in turn, improves the force transmission stability between the driving gear 16 and the driven gear 1026, that is, between the second seat 102 and the first seat 101, and effectively prevents jamming and abnormal noises during the rotation of the seat cushion 2.

[0052] It should be noted that, in addition to setting up the driving gear 16 and the driven gear 1026, and realizing the rotational drive of the second drive unit on the second base 102 through the meshing between the two, the drive shaft of the second drive unit can also be directly connected to the second base 102, and the second drive unit can directly drive the second base 102 to rotate. However, in this case, since there is no gear unit for speed reduction and torque amplification, the second drive unit will have a large torque requirement, which is not conducive to cost reduction and is also inconvenient to arrange.

[0053] In some exemplary embodiments, the guide groove is an arc-shaped groove protruding downwards from the seat cushion 2, and the first drive unit is hinged to the base 1 and used to output linear power. The transmission rod 6 is connected to the power output end of the first drive unit. Here, by setting the guide groove to an arc shape protruding downwards from the seat cushion 2, a fixed arc-shaped motion path can be provided for the transmission rod 6. On the one hand, the composite motion trajectory of the seat cushion 2 sliding forward and lifting at the front end can be defined, which can effectively avoid deviation and jamming during the adjustment process and help ensure smooth changes in the posture of the seat cushion 2.

[0054] On the other hand, the trajectory defined by the arc groove can match the natural curve of the human body when adjusting its sitting posture, such as the angle of the buttocks and legs in a zero-gravity posture, which allows the seat cushion 2 to support the body more closely and further improves riding comfort. The first drive unit is hinged to the base 1 and outputs linear power, which can be directly converted into the displacement and lifting action of the seat cushion 2 through the transmission rod 6, which can reduce power transmission error and improve adjustment response speed.

[0055] In specific implementation, you can refer to Figures 10 to 13In this embodiment, the first driving unit is specifically a first motor 5 mounted on the base 1. This first motor 5 is a lead screw motor, with the same structure as existing motors, including a lead screw body and a nut seat threadedly connected to the lead screw body. As shown in Figure 5, in this embodiment, the transmission rod 6 is directly inserted into the nut seat. On the one hand, the transmission rod 6 can circumferentially limit the nut seat, effectively restricting its synchronous rotation with the lead screw body. On the other hand, when the lead screw motor drives the lead screw body to rotate, the nut seat can translate back and forth along the axis of the lead screw body, thereby driving the transmission rod 6 to move synchronously, ultimately realizing the posture adjustment action of the seat cushion 2.

[0056] Meanwhile, the front and rear ends of the lead screw body are provided with threadless limit positioning sections. When the nut seat moves to this threadless limit position with the rotation of the lead screw, the threaded transmission relationship is interrupted, and the first motor 5 can no longer drive the nut seat to move along the lead screw axis, thus forming a mechanical limiting structure. This design can effectively limit the adjustment stroke of the seat cushion 2, ensuring that the seat cushion 2 remains stably in the preset initial design position or zero-gravity working position, which can further improve the reliability and positional stability of seat adjustment.

[0057] In addition, in order to install the first motor 5, it can be as follows Figure 10 As shown, a mounting bracket 15 for mounting the first motor 5 is provided on the top of the second base 102. In this embodiment, the mounting bracket 15 includes a base plate 1501 on the front horizontal plate 1022 and a side plate 1502 on the top of the base plate 1501.

[0058] Furthermore, the base plate 1501 protrudes forward from the front of the horizontal plate 1022 to provide a larger installation space for the first motor 5. The side plate 1502 is generally U-shaped and has a front wall and two side walls on opposite sides of the front wall. Moreover, hinge holes are provided on the two side walls respectively. In this embodiment, the first motor 5 is hinged in the two hinge holes via a rotating shaft, thereby allowing the first motor 5 to swing during operation.

[0059] It should be noted that, in addition to using the first motor 5, it is theoretically feasible to use a linear cylinder for the first drive unit.

[0060] In some exemplary embodiments, the seat cushion 2 is provided with a reinforcing rod 7 extending along its width direction, and the reinforcing rod 7 is slidably disposed within a guide groove. In this case, by further providing the reinforcing rod 7 extending along the width direction of the seat cushion 2, the overall rigidity of the seat cushion 2 can be increased, which can more effectively resist the deformation of the seat cushion 2 during adjustment or load-bearing, thereby reducing the relative sliding between the body and the seat cushion 2 and further improving riding comfort.

[0061] Meanwhile, the reinforcing rod 7 can also distribute the local pressure of the body weight on the seat cushion 2 frame, reducing the risk of breakage at the connection of the seat cushion 2 and extending the service life of the seat cushion 2. In addition, by sliding the reinforcing rod 7 in the guide groove, compared with relying solely on the cooperation between the transmission rod 6 and the groove, the movement of the seat cushion 2 can be better restrained, thereby better preventing the seat cushion 2 from shifting left or right or twisting during adjustment, which helps to improve the durability of the adjustment mechanism.

[0062] In this embodiment, as Figure 1 and Figure 5 As shown, in a specific implementation, guide grooves can be provided on both the left and right sides of the base 1, so that the transmission rod 6 and the reinforcing rod 7 extend along the width direction of the cushion 2, and their ends are slidably inserted into the guide grooves at their respective ends. Furthermore, based on the fact that the guide grooves are arc-shaped, in this embodiment, the transmission rod 6 and the reinforcing rod 7 are arranged at intervals along the front-back direction of the cushion 2, and the two are staggered in the height direction of the cushion 2.

[0063] This design allows the linear power output from the first drive unit to be evenly transmitted to both sides of the seat cushion 2, effectively preventing the seat cushion 2 from shifting, twisting, or getting stuck during adjustment. At the same time, the sliding supports at both ends of the reinforcing rod 7 can simultaneously bear the pressure of the human body weight on the seat cushion 2, preventing deformation of the seat cushion 2 frame caused by concentrated weight on one side.

[0064] In some exemplary embodiments, the cushion 2 has a downwardly extending fixing plate 9, and the base 1 has an upwardly protruding connecting frame 8. Furthermore, the connecting frame 8 has a guide groove, and the transmission rod 6 and the reinforcing rod 7 are both disposed on the fixing plate 9 and slidably disposed within the guide groove.

[0065] Here, by extending the fixing plate 9 downwards and making the connecting frame 8 protrude upwards, a transmission space can be formed between the seat cushion 2 and the base 1. This not only facilitates the arrangement of the transmission rod 6 and the reinforcing rod 7, but also effectively avoids spatial interference between the transmission rod 6, the reinforcing rod 7 and other seat components. Simultaneously, it helps ensure that the adjustment movement of the transmission rod 6 along the guide groove is not affected by rotating components, thus improving the overall space utilization of the structure.

[0066] In this embodiment, in some exemplary implementations, the connecting frame 8 includes a connecting plate 801 disposed on the base 1, and a guide rail 802 disposed on the connecting plate 801. A guide groove is provided on the guide rail 802, and a clearance hole 8011 is provided on the connecting plate 801. Furthermore, the clearance hole 8011 is provided corresponding to the guide groove and is used to avoid the transmission rod 6 and the reinforcing rod 7. The transmission rod 6 and the reinforcing rod 7 are provided with rollers 18, which are slidably disposed in the guide groove.

[0067] In this case, by providing the guide rail 802 and arranging the guide slot on the guide rail 802, the stability of the guide slot can be improved by virtue of the good structural strength of the guide rail 802, thereby improving the guidance smoothness for the transmission rod 6, which is beneficial to preventing the movement of the transmission rod 6 from being stuck. In addition, the sliding slot of the guide rail 802 on the inner side of the connecting plate 801 cooperates with the rollers 18 on the transmission rod 6 and the reinforcing rod 7, which can convert the sliding friction between the rod body and the slot into the rolling friction between the rollers 18 and the sliding slot, and can greatly reduce the resistance when the transmission rod 6 and the reinforcing rod 7 move along the guide slot.

[0068] With this design, when the first motor 5 drives the cushion 2 to adjust, it is not necessary to overcome excessive frictional resistance, which can not only improve the response speed of the adjustment action, but also improve the smoothness and coherence of the composite action of the cushion 2 sliding forward and lifting the front end, which is beneficial to improving the user's operating experience.

[0069] For specific implementation, reference can be made to Figure 5 and Figures 10 to 14 As shown in the figures, in this embodiment, there are two fixing plates 9 and two connecting frames 8 respectively arranged on the left and right sides of the cushion 2, and a first folded edge folded outward is provided at the bottom of the connecting plate 801. Moreover, there are two first folded edges arranged at the front and rear ends of the connecting plate 801, and the first folded edge at each end is connected to the two transverse plates 1022 at the front and rear ends of the second seat body 102 in one-to-one correspondence respectively.

[0070] In addition, as shown in Figure 11 the figure, the guide rail 802 is generally in an arc shape protruding downward, and its cross-section is generally in a "convex" structure with an opening at the top, which can facilitate the rollers 18 to enter the guide slot and effectively prevent the rollers 18 from slipping out of the guide slot, which is beneficial to ensuring the guidance stability for the transmission rod 6. The fixing plate 9 on each side is respectively arranged on the outer side of the corresponding connecting plate 801, a second folded edge folded outward is provided at the top of the fixing plate 9, and the second folded edge is connected to the side plate on the corresponding side of the cushion 2.

[0071] It should be noted that the structures of the fixing plate 9 and the connecting frame 8 are not limited to those shown in the figures, and can be adjusted accordingly according to design requirements. In addition, besides arranging the rollers 18 on both the transmission rod 6 and the reinforcing rod 7 and slidably arranging the rollers 18 in the guide slot, the rollers 18 can also be arranged only on the transmission rod 6 or only on the reinforcing rod 7.

[0072] In addition, in some exemplary embodiments, the link assembly of this embodiment includes a first link 3 and a second link 4 respectively hinged to the front and rear ends of the cushion 2. Moreover, a first sliding slot 10231 and a second sliding slot 10241 are respectively provided at the front and rear ends of the base 1, one end of the first link 3 is slidably arranged in the first sliding slot 10231, and one end of the second link 4 is slidably arranged in the second sliding slot 10241.

[0073] At this point, by connecting the first link 3 and the second link 4 to the front and rear ends of the seat cushion 2 respectively, and defining the sliding path by the first groove 10231 and the second groove 10241 on the base 1, when the first drive unit drives the seat cushion 2 to move through the rack unit, the sliding trajectory of the two links is defined by the grooves. This guides the seat cushion 2 to slide forward while simultaneously raising the front end and lowering the rear end to form an ergonomic posture change, thus improving riding comfort. Furthermore, the first link 3 and the second link 4 can respectively bear the load of the front and rear ends of the seat cushion 2, helping to avoid component deformation caused by excessive force at a single point. Moreover, this structure is simple and easy to manufacture.

[0074] In specific implementation, you can refer to Figures 14 to 16 As shown, similar to the prior art, the seat cushion 2 in this embodiment also has a front linkage tube 11 and a rear linkage tube 13 located at its front and rear ends on its frame. Furthermore, the top end of the first connecting rod 3 in this embodiment is hinged to the front linkage tube 11, while the top end of the second connecting rod 4 is hinged to the rear linkage tube 13. (Combined with...) Figure 10 and Figure 15 and Figure 16 As shown, the first slide groove 10231 is provided on the first support plate 1023 on the top of the second seat 102, while the second slide groove 10241 is provided on the second support plate 1024 on the top of the second seat 102.

[0075] Among them, such as Figure 10 As shown, both the first groove 10231 and the second groove 10241 are elongated grooves extending along the front-rear direction of the seat cushion 2, and the length of the first groove 10231 is greater than the length of the second groove 10241, while the length of the first connecting rod 3 is greater than the length of the second connecting rod 4. With this design, when the first drive unit drives the seat cushion 2 to move, the first connecting rod 3 connected to the front end can slide forward a greater distance within the longer first groove 10231, thereby lifting the front end of the seat cushion 2.

[0076] Meanwhile, the second link 4 connecting the rear end only slides forward slightly within the shorter second slide groove 10241, effectively preventing excessive lifting or offset of the rear end. Thus, without the need for additional complex trajectory control mechanisms, the seat cushion 2 can naturally form a motion trajectory with a large sliding and lifting at the front end and a small follow-up movement at the rear end through the constraints of the mechanical structure itself, which can better meet the posture requirements when transitioning from a normal sitting posture to a zero-gravity posture.

[0077] Furthermore, to improve the sliding stability of the first link 3 and the second link 4, both the first support plate 1023 and the second support plate 1024 are L-shaped to provide better structural strength and facilitate installation on the second base 102. Additionally, the bottom end of the first link 3 is provided with a first connecting shaft, through which it slides within the first groove 10231. The bottom end of the second link 4 is provided with a second connecting shaft, through which it slides within the second groove 10241.

[0078] In addition, in some exemplary embodiments, there are two first connecting rods 3 arranged opposite each other, and a first linkage rod 10 is provided between the two first connecting rods 3. The first connecting rods 3 are hinged to the cushion 2 through the first linkage rod 10. Here, by setting two oppositely arranged first connecting rods 3, the force can be evenly distributed to the first support plate 1023 of the base 1, avoiding the cushion 2 from tilting due to unilateral force on a single first connecting rod 3, and thus preventing the left and right height difference of the front end of the cushion 2.

[0079] At the same time, the first linkage rod 10 can rigidly connect the two first linkage rods 3 into a whole, so that the force on the two linkage rods is synchronized in real time. Even if the passenger applies pressure to the first linkage rod 10 on one side of the front end of the seat cushion 2, the force can be quickly transmitted, which can effectively prevent the first linkage rod 3 on one side from being overloaded and deformed. This helps to ensure that the front end of the seat cushion 2 always maintains a horizontal and stable support state, which can improve riding safety.

[0080] In some exemplary embodiments, there are two opposing second links 4, with a second linkage 12 between them. The second links 4 are hinged to the seat cushion 2 via the second linkage 12. The arrangement of two opposing second links 4 not only evenly distributes the force on the rear mounting plate 14 to the second support plate 1024 of the base 1, preventing the seat cushion 2 from tilting due to unilateral force on a single second link 4, but also prevents a left-right height difference at the front end of the seat cushion 2.

[0081] Meanwhile, the second linkage 12 can synchronize the force on the two linkages in real time. Even if the passenger applies pressure on one side of the rear end of the seat cushion 2, it can effectively prevent the second linkage 4 on one side from being overloaded and deformed, which helps to ensure that the rear end of the seat cushion 2 always maintains a horizontal and stable support state, thus improving riding safety.

[0082] In specific implementation, it can be as follows: Figure 15 and Figure 16As shown, to achieve the hinge connection between the first link 3 and the second link 4 and the seat cushion 2, the front and rear ends of the seat cushion 2 are respectively provided with downwardly extending mounting plates 14. Each first link 3 is welded to the first linkage rod 10, and the first linkage rod 10 is rotatably mounted on the front mounting plate 14. At the same time, each second link 4 is welded to the second linkage rod 12, and the second linkage rod 12 is rotatably mounted on the rear mounting plate 14.

[0083] It should be noted that, in specific implementations, the first linkage 10 and the second linkage 12 may be omitted, and the first linkage 3 may be directly rotatably mounted on the front mounting plate 14 or the front linkage pipe 11. Alternatively, the second linkage 4 may be directly rotatably mounted on the rear mounting plate 14 or the rear linkage pipe 13.

[0084] It is worth noting that, regarding the seat structure of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 16 The diagram shows a base 1, a seat cushion 2 mounted on the base 1 via a transmission mechanism, and a first drive unit mounted on the base 1 and connected to the transmission mechanism. The transmission mechanism includes a linkage assembly between the seat cushion 2 and the base 1, and a transmission rod 6 between the first drive unit and the seat cushion 2. A guide groove is provided on the base 1 to guide the transmission rod 6 to slide. The first drive unit can drive the seat cushion 2 to move via the transmission rod 6, and guided by the guide groove, the seat cushion 2 can slide forward, raising its front end.

[0085] The linkage assembly includes a first link 3 and a second link 4, which are respectively hinged to the front and rear ends of the seat cushion 2. The front and rear ends of the base 1 are respectively provided with a first slide groove 10231 and a second slide groove 10241. One end of the first link 3 is slidably disposed in the first slide groove 10231, and one end of the second link 4 is slidably disposed in the second slide groove 10241.

[0086] The base 1 includes a first seat body 101 and a second seat body 102. The second seat body 102 is rotatably mounted on the first seat body 101, and a second driving part for driving the second seat body 102 to rotate is provided on the first seat body 101. The cushion 2 and the first driving part are both provided on the second seat body 102.

[0087] In the preferred embodiment of the above seat structure, the specific configuration and arrangement of the transmission rod 6, the first connecting rod 3, and the second connecting rod 4 can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the transmission rod 6, the first connecting rod 3, and the second connecting rod 4 can also be referred to the descriptions in the above exemplary embodiments.

[0088] The seat structure in this embodiment adopts the above design. When the user needs to use the zero-gravity function, the seat control command is activated to make the first motor 5 move. The first motor 5 outputs power to drive the transmission rod 6 to slide forward along the guide groove. The transmission rod 6 then drives the first connecting rod 3 and the second connecting rod 4 to rotate clockwise and slide forward synchronously. Finally, the seat switches to a zero-gravity posture to meet the user's relaxation needs.

[0089] Therefore, the seat structure in this embodiment, by adopting the above structure, eliminates the need to adjust the backrest angle; the seat cushion 2 can achieve a zero-gravity posture simply by driving the first motor 5. Furthermore, the seat cushion 2 can be rotated via the transmission rod 6, creating an egg-shaped cabin seating environment, which enhances comfort. Simultaneously, the ability of the seat cushion 2 to rotate further enhances seating flexibility and comfort.

[0090] An embodiment of the second aspect of this application provides a vehicle having the seat structure of the embodiment of the first aspect.

[0091] The vehicle in this embodiment, by setting the seat structure as described above, can have better riding comfort and improve the riding experience.

[0092] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A seat structure, characterized in that: It includes a base (1), a cushion (2) disposed on the base (1) via a transmission mechanism, and a first drive unit disposed on the base (1) and connected to the transmission mechanism; The transmission mechanism includes a connecting rod assembly disposed between the seat cushion (2) and the base (1), and a transmission rod (6) disposed between the first drive unit and the seat cushion (2), and a guide groove is provided on the base (1) to guide the transmission rod (6) to slide. The first drive unit can drive the seat cushion (2) to move through the transmission rod (6), and under the guidance of the guide groove, the seat cushion (2) can slide forward and raise the front end of the seat cushion (2).

2. The seat structure according to claim 1, characterized in that: The guide groove is an arc-shaped groove protruding downwards from the seat cushion (2); The first drive unit is hinged to the base (1) and is used to output linear power. The transmission rod (6) is connected to the power output end of the first drive unit.

3. The seat structure according to claim 2, characterized in that: The cushion (2) is provided with a reinforcing rod (7) extending along its width direction, and the reinforcing rod (7) is slidably disposed in the guide groove.

4. The seat structure according to claim 3, characterized in that: The cushion (2) is provided with a downwardly extending fixing plate (9), and the base (1) is provided with an upwardly protruding connecting frame (8). The connecting frame (8) has the guide groove formed thereon. The transmission rod (6) and the reinforcing rod (7) are both provided on the fixing plate (9) and are slidably provided in the guide groove.

5. The seat structure according to claim 4, characterized in that: The connecting frame (8) includes a connecting plate (801) disposed on the base (1) and a guide rail (802) disposed on the connecting plate (801). The guide groove is disposed on the guide rail (802), and a clearance hole (8011) is provided on the connecting plate (801). The clearance hole (8011) is provided corresponding to the guide groove and is used to avoid the transmission rod (6) and the reinforcing rod (7). The transmission rod (6) and / or the reinforcing rod (7) are provided with rollers (18), which are slidably disposed in the guide groove.

6. The seat structure according to claim 1, characterized in that: The linkage assembly includes a first link (3) and a second link (4) respectively hinged to the front and rear ends of the seat cushion (2); The base (1) has a first groove (10231) and a second groove (10241) at its front and rear ends respectively. One end of the first connecting rod (3) is slidably disposed in the first groove (10231), and one end of the second connecting rod (4) is slidably disposed in the second groove (10241).

7. The seat structure according to claim 6, characterized in that: The first connecting rods (3) are two arranged opposite each other, and a first linkage rod (10) is provided between the two first connecting rods (3). The first connecting rods (3) are hinged to the seat cushion (2) through the first linkage rod (10); and / or, The second link (4) consists of two oppositely arranged links, and a second linkage (12) is provided between the two links (4). The second link (4) is hinged to the cushion (2) through the second linkage (12).

8. The seat structure according to any one of claims 1 to 7, characterized in that: The base (1) includes a first base (101) and a second base (102), the second base (102) is rotatably mounted on the first base (101), and a second driving part for driving the second base (102) to rotate is provided on the first base (101); Both the seat cushion (2) and the first drive unit are located on the second seat body (102).

9. The seat structure according to claim 8, characterized in that: The second drive unit is capable of outputting rotational power, and a drive gear (16) is provided at the power output end of the second drive unit. The second seat (102) is provided with a driven gear (1026) that meshes with the driving gear (16).

10. A vehicle, characterized in that: The vehicle is equipped with a seat structure as described in any one of claims 1 to 9.

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