A seat cushion, a seat, and a vehicle

Abstract

The application belongs to the technical field of vehicle seats, and discloses a seat cushion, a seat and a vehicle, wherein the seat cushion comprises a seat cushion framework and a lifting mechanism, the lifting mechanism comprises a lifting piece, a transmission piece and a driving piece, one end of the lifting piece is hinged to the seat cushion framework, the lifting piece is provided with a driving groove, the driving piece is arranged outside the seat cushion framework, an output shaft of the driving piece is arranged through the seat cushion framework, the transmission piece is provided with a connecting position and a driving position, the connecting position is connected to the output shaft of the driving piece, the driving position is connected with a driving body which is slidably connected to the driving groove, the transmission piece can rotate with the output shaft of the driving piece, so that the lifting piece can rotate relative to the seat cushion framework under the cooperation of the driving body and the driving groove, and other functional components can be installed in the seat cushion framework, so as to ensure the diversity of the functions of the seat cushion.

Description

Technical Field

[0001] This application belongs to the technical field of vehicle seats, specifically relating to a seat cushion, a seat, and a vehicle. Background Technology

[0002] An automobile is a non-rail-mounted vehicle with multiple wheels and powered by a power unit. It is primarily used for transporting people and goods and is one of the most important modes of transportation in modern society. Seats are an important component of the automobile interior, primarily providing passengers with a comfortable and safe seating space.

[0003] Currently, most seats have reclining backrests that allow passengers to lie down and rest. However, because there is a height difference between the back of the seat cushion and the backrest when the backrest is reclined, passengers lack lumbar support, which can easily cause lower back discomfort and affect their reclining experience.

[0004] To improve the passenger's reclining experience, some vehicle models incorporate a lifting mechanism within the seat frame. This mechanism elevates the seat cushion padding at the rear end, overcoming the height difference between the rear end of the seat cushion and the backrest when the backrest is folded down, thus enhancing the passenger's reclining comfort. Common lifting mechanisms include a lifting structure and a drive structure. The lifting structure is hinged to the seat cushion frame, while the drive structure is located within the seat cushion frame and connected to the lifting structure. This allows the drive structure to rotate the lifting structure around the hinge axis between the lifting structure and the seat cushion frame, enabling the lifting structure to push the seat cushion padding upwards, thereby lifting the rear end of the seat cushion.

[0005] However, since the drive structure usually uses an electric lead screw located inside the seat cushion frame, and the slider of the electric lead screw is equipped with a drive arm hinged to the lifting structure, the drive arm can move along the lead screw axis with the slider so that the drive arm drives the lifting structure under the drive of the electric lead screw, thereby causing the lifting structure to rotate and push the seat cushion filling. However, since the electric lead screw is located inside the seat cushion frame, this causes the electric lead screw to interfere with other functional components that need to be located inside the seat cushion frame, thus making it impossible to install other functional components in the seat cushion frame, thereby affecting the diversity of seat cushion functions. Utility Model Content

[0006] This application provides a seat cushion to ensure the versatility of seat cushion functions.

[0007] The technical solution adopted in this application is as follows: A seat cushion includes a seat cushion frame and a lifting mechanism. The lifting mechanism includes a lifting member, a transmission member, and a driving member. The lifting member is located inside the seat cushion frame, with one end hinged to the seat cushion frame. The lifting member has a driving groove. The driving member is located on the outside of the seat cushion frame, and its output shaft passes through the seat cushion frame. The transmission member is located inside the seat cushion frame and has a connecting position and a driving position spaced apart from the connecting position. The connecting position is connected to the output shaft of the driving member, and the driving position is connected to a driving body slidably connected to the driving groove. The transmission member can rotate with the output shaft of the driving member, so that the lifting member can rotate relative to the seat cushion frame under the cooperation of the driving body and the driving groove.

[0008] By adopting the above technical solution, when lifting the seat cushion filling at the rear end of the seat cushion, the drive component is activated so that the output shaft of the drive component drives the transmission component to rotate in the first direction. Then, the transmission component drives the drive body to rotate around the output shaft of the drive component. At the same time, the drive body slides relative to the drive groove and drives the lifting component to move under the action of the drive groove wall. This causes the lifting component to rotate relative to the seat cushion frame and rotate upward, so that the lifting component pushes the seat cushion filling upward to complete the lifting of the seat cushion filling at the rear end of the seat cushion.

[0009] When lowering the seat cushion filling at the rear end of the seat cushion, the drive unit is activated so that the output shaft of the drive unit drives the transmission unit to rotate in a second direction opposite to the first direction. This causes the transmission unit to drive the drive body to rotate around the output shaft of the drive unit. At the same time, the drive body slides relative to the drive groove and, under the action of the groove wall, drives the lifting member to move. This causes the lifting member to rotate relative to the seat cushion frame and rotate downward, so that the seat cushion filling at the rear end of the seat cushion moves downward under its own elastic force, thus completing the descent of the seat cushion filling at the rear end of the seat cushion.

[0010] Because the drive unit is located on the outside of the seat frame, it can avoid interfering with the internal space of the seat frame. This allows for a larger space inside the seat frame to accommodate other functional components that need to be installed inside, thus facilitating their installation. On the other hand, it avoids situations where the drive unit's location inside the seat frame would interfere with other functional components of the seat, preventing the installation of other functional components and ensuring the versatility of the seat's functions.

[0011] Optionally, the output shaft of the drive component is provided with a drive gear, and the transmission component is provided with a mating body located at the connection position. The mating body is provided with a toothed hole adapted to the drive gear, and the drive gear is located in the toothed hole.

[0012] By adopting the above technical solution, when the drive component is working, the output shaft of the drive component drives the drive gear to rotate, so that the drive gear drives the transmission component to rotate under the action of the tooth cavity wall, so that the transmission component follows the output shaft of the drive component to rotate.

[0013] In addition, when connecting the output shaft of the transmission component and the drive component, it is only necessary to mate the toothed hole in the mating body with the drive gear. That is, the toothed hole only needs to be fitted on the outside of the drive gear to facilitate the installation of the transmission component, thereby reducing the installation difficulty of the transmission component and improving the assembly efficiency of the seat cushion.

[0014] Furthermore, by setting a drive gear and a toothed hole to enable the transmission component to rotate with the output shaft of the drive component, it can also increase the connection area between the transmission component and the output shaft of the drive component, thereby increasing the connection stability between the two.

[0015] Optionally, the output shaft of the drive member has an exposed section passing through the transmission member, the exposed section being threaded with a nut, the nut being located on the side of the transmission member opposite to the mating body.

[0016] By adopting the above technical solution, since the exposed section is threaded with a nut, and the nut is located on the side of the transmission component away from the mating body, the nut can be used to limit the transmission component, thereby increasing the stability of the connection between the output shaft of the transmission component and the drive component, thus ensuring the transmission efficiency between the output shaft of the drive component and the transmission component, and thus ensuring the stable operation of the lifting mechanism.

[0017] Optionally, the transmission component includes a connecting section, a driving section, and a transition section located between the connecting section and the driving section. The connecting section is located in the connecting section, the driving section is located in the driving section, and the transition section extends along the width direction of the seat cushion. The projection of the exposed section toward the transition section is located inside the transition section.

[0018] By adopting the above technical solution, since the transition section extends along the width of the seat cushion and the projection of the exposed section toward the transition section is located inside the transition section, on the one hand, the nut and the exposed section can avoid the transmission component, so as to ensure the rotation range of the lifting component and thus ensure that the lifting component can push the seat cushion filling height. On the other hand, the drive gear can be closer to the side of the seat cushion frame, so as to further increase the space reserved inside the seat cushion frame for other functional components, thereby further achieving the effect of facilitating the installation of other functional components that need to be installed on the seat cushion frame.

[0019] Optionally, the lifting member includes a lifting rod and connecting pieces at both ends of the lifting rod. The connecting pieces have a hinge end that is hinged to the seat cushion frame and a lifting end opposite to the hinge end. The lifting rod is located at the lifting end. The driving groove is provided on one of the connecting pieces and extends along the length direction of the connecting piece.

[0020] By adopting the above technical solution, when lifting the seat cushion filling at the rear end of the seat cushion, the output shaft of the drive component drives the transmission component to rotate in the first direction, so that the transmission component drives the drive body to rotate. The drive body slides relative to the drive groove provided in the connecting piece. At the same time, under the cooperation of the drive body and the drive groove, the connecting piece drives the lifting rod to rotate upward around the hinge end, so that the lifting rod pushes the seat cushion filling, thereby lifting the seat cushion filling at the rear end of the seat cushion.

[0021] When the seat cushion filling at the rear end of the seat cushion is lowered, the output shaft of the drive unit drives the transmission unit to rotate in a second direction opposite to the first direction, so that the transmission unit drives the drive unit to rotate. The drive body slides relative to the drive groove provided in the connecting plate. At the same time, the connecting plate drives the lifting rod to rotate downward around the hinge end under the cooperation of the drive body and the drive groove, so that the seat cushion filling moves downward under the action of its own elastic force, thereby realizing the lowering of the seat cushion filling at the rear end of the seat cushion.

[0022] Since the drive groove is located on one of the connecting pieces, compared to a solution where the drive groove is a separate component on the transmission component, the manufacturing difficulty of the lifting component is reduced, thereby reducing the manufacturing cost of the seat cushion. At the same time, the stability of the drive groove is ensured, which in turn ensures the driving stability of the lifting component through the transmission component.

[0023] Optionally, the seat frame has a rear cross tube, and the hinged end is sleeved on the outside of the rear cross tube.

[0024] By adopting the above technical solution, since the hinged end is sleeved on the outside of the rear horizontal tube, the hinged connection between the lifting component and the seat frame is realized on the one hand, and the connection stability between the lifting component and the seat frame is increased on the other hand, so as to ensure the stability of the lifting mechanism. Furthermore, compared with the existing technology of installing the lifting component to the seat frame by bolts, the installation difficulty of the lifting component is reduced, thereby improving the assembly efficiency of the seat.

[0025] Optionally, one of the connecting pieces has an extension arm extending from the lifting end toward the hinge end, and the drive groove is provided in the extension arm. Alternatively, the drive groove is located between the hinge end and the lifting end.

[0026] By adopting the above technical solution, since the lifting end of the connecting piece is provided with an extension arm extending away from the hinge end, and the drive groove is located in the extension arm, the distance between the connection position of the drive body and the drive groove and the hinge end is increased, thereby reducing the drive load of the drive component. Thus, under the premise that the maximum lifting load required by the lifting mechanism remains unchanged, a drive component with relatively low power can be configured for the seat cushion to reduce the manufacturing cost of the seat cushion, or the maximum lifting load of the lifting mechanism can be increased while ensuring that the power of the drive component remains unchanged.

[0027] Because the drive slot is located between the hinge end and the lifting end, the internal space of the seat frame required by the lifting component is reduced, so that more installation space can be reserved for other functional components that need to be installed inside the seat frame. This makes it easier to install other functional components that need to be installed inside the seat frame, and also allows more other functional components to be installed in the seat frame to ensure increased seat functionality.

[0028] Optionally, the drive groove passes through the connecting piece in the thickness direction, and the drive body has a blocking portion located on the side of the connecting piece opposite to the transmission member.

[0029] By adopting the above technical solution, since the driving body has a blocking part located on the side of the connecting piece away from the transmission component, the blocking part can be used to block the driving body to prevent the driving body from possibly detaching from the driving groove, thereby ensuring the connection stability between the driving body and the driving groove, and thus ensuring the working stability of the lifting mechanism.

[0030] This application also provides a seat to ensure the versatility of seat functions.

[0031] A chair, including a backrest and a seat cushion as described above.

[0032] By adopting the above technical solution, since the seat in this application uses the aforementioned seat cushion, the drive component can avoid the internal space of the seat cushion frame, so that other functional components can be installed in the internal space of the seat cushion frame, thereby ensuring the diversity of seat cushion functions and thus ensuring the diversity of seat functions.

[0033] This application also provides a vehicle to ensure the passenger's driving experience.

[0034] A vehicle comprising a seat cushion or a seat as described above.

[0035] By adopting the above technical solution, since the vehicle in this application includes the aforementioned seat cushion or seat, the diversity of seat cushion functions can be guaranteed, thereby ensuring the passenger's driving experience.

[0036] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows: 1. The seat cushion in this application includes a seat cushion frame and a lifting mechanism. The lifting mechanism includes a lifting member, a transmission member, and a driving member. The lifting member is located inside the seat cushion frame, and one end of the lifting member is hinged to the seat cushion frame. The lifting member has a driving groove. The driving member is located on the outside of the seat cushion frame, and the output shaft of the driving member passes through the seat cushion frame. The transmission member is located inside the seat cushion frame and has a connecting position and a driving position spaced apart from the connecting position. The connecting position is connected to the output shaft of the driving member, and the driving position is connected to a driving body that is slidably connected to the driving groove. The transmission member can rotate with the output shaft of the driving member, so that the lifting member can rotate relative to the seat cushion frame under the cooperation of the driving body and the driving groove. This allows for a larger space inside the seat cushion frame to accommodate other functional components that need to be installed inside the seat cushion frame, thus facilitating the installation of these components. Furthermore, it avoids the situation where the driving member, being located inside the seat cushion frame, interferes with other functional components of the seat cushion, preventing the installation of other functional components within the seat cushion. This ensures the versatility of the seat cushion's functions.

[0037] 2. In this application, the output shaft of the drive component is provided with a drive gear, and the transmission component is provided with a mating body located at the connection position. The mating body is provided with a toothed hole adapted to the drive gear, and the drive gear is located in the toothed hole. Therefore, when connecting the transmission component and the output shaft of the drive component together, it is only necessary to mate the toothed hole in the mating body with the drive gear. That is, it is only necessary to fit the toothed hole on the outside of the drive gear, so as to facilitate the installation of the transmission component, thereby reducing the installation difficulty of the transmission component and improving the assembly efficiency of the seat cushion.

[0038] 3. The output shaft of the drive component of this application has an exposed section that passes through the transmission component. The exposed section is threaded with a nut. The nut is located on the side of the transmission component away from the mating body. The nut can then be used to limit the transmission component, thereby increasing the connection stability between the output shaft of the transmission component and the drive component. This ensures the transmission efficiency between the output shaft of the drive component and the transmission component, and thus ensures the stable operation of the lifting mechanism. Attached Figure Description

[0039] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a partial structural diagram of the seat cushion described in one embodiment of this application; Figure 2 This is a partial structural cross-sectional view of the seat cushion described in one embodiment of this application; Figure 3 This is a schematic diagram of the seat cushion from another perspective in one embodiment of this application, mainly showing the relative positional relationship between the lifting member and the rear cross tube when the lifting member is in the initial position; Figure 4 This is a partial structural diagram of the seat cushion described in one embodiment of this application, mainly showing the relative positional relationship between the lifting member and the rear horizontal tube when the lifting member is in the lifted position; Figure 5 This is a partial top view of the structure of the seat cushion described in one embodiment of this application; Figure 6 This is a schematic diagram of the structure of the seat cushion frame according to one embodiment of this application; Figure 7 This is a schematic diagram of the lifting member described in one embodiment of this application; Figure 8 This is a schematic diagram of the transmission component described in one embodiment of this application.

[0040] Figure label: 1. Seat cushion frame; 11. Rear cross tube; 111. Limiting plate; 12. Front cross tube; 13. Side plate; 2. Lifting mechanism; 21. Lifting component; 211. Connecting plate; 212. Lifting rod; 213. Extension arm; 214. Drive groove; 215. Bushing; 22. Transmission component; 221. Connecting section; 222. Drive section; 223. Transition section; 224. Mating body; 225. Gear hole; 226. Drive body; 23. Drive component; 231. Drive gear. Detailed Implementation

[0041] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0043] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship 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 of this application.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example 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. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0046] Reference Figures 1 to 8 A seat cushion is disclosed, comprising a seat cushion frame 1 and a lifting mechanism 2. The lifting mechanism 2 includes a lifting member 21, a transmission member 22, and a driving member 23. The lifting member 21 is located inside the seat cushion frame 1, and one end of the lifting member 21 is hinged to the seat cushion frame 1. The lifting member 21 has a driving groove 214. The driving member 23 is located on the outside of the seat cushion frame 1, and the output shaft of the driving member 23 passes through the seat cushion frame 1. The transmission member 22 is located inside the seat cushion frame 1 and has a connecting position and a driving position spaced apart from the connecting position. The connecting position is connected to the output shaft of the driving member 23, and the driving position is provided with a driving body 226 slidably connected to the driving groove 214. The transmission member 22 can rotate with the output shaft of the driving member 23 so that the lifting member 21 can rotate relative to the seat cushion frame 1 under the cooperation of the driving body 226 and the driving groove 214.

[0047] It is understood that the seat cushion frame 1 has a rear horizontal tube 11, a front horizontal tube 12 spaced apart from the rear horizontal tube 11, and two side plates 13 located at both ends of the rear horizontal tube 11 and the front horizontal tube 12, respectively. The rear horizontal tube 11 is located at the rear end of the side plate 13, and the front horizontal tube 12 is located at the front end of the side plate 13. The interior of the seat cushion frame 1 refers to the space formed between the two side plates 13, the exterior of the seat cushion frame 1 refers to the side of the two side plates 13 that are opposite to each other, and the interior of the seat cushion frame 1 refers to the side of the two side plates 13 that are close to each other. The side plate 13 is provided with a hole structure for the output shaft of the drive member 23 to pass through, and the output shaft of the drive member 23 passes through the hole structure. The lifting member 21 has an initial position and a lifting position above the initial position. When the lifting member 21 is in the lifting position, it can push the rear end of the seat cushion filling upward.

[0048] When lifting the seat cushion filling at the rear end of the seat cushion, the drive unit 23 is activated so that the output shaft of the drive unit 23 drives the transmission unit 22 to rotate in the first direction. Then, the transmission unit 22 drives the drive body 226 to rotate around the output shaft of the drive unit 23. At the same time, the drive body 226 slides relative to the drive groove 214 and drives the lifting member 21 to move under the action of the groove wall of the drive groove 214. This causes the lifting member 21 to rotate relative to the seat cushion frame 1 and rotate upward, so that the lifting member 21 pushes the seat cushion filling upward to complete the lifting of the seat cushion filling at the rear end of the seat cushion.

[0049] When the seat cushion filling at the rear end of the seat cushion is lowered, the drive unit 23 is activated so that the output shaft of the drive unit 23 drives the transmission unit 22 to rotate in a second direction opposite to the first direction. This causes the transmission unit 22 to drive the drive body 226 to rotate around the output shaft of the drive unit 23. At the same time, the drive body 226 slides relative to the drive groove 214 and drives the lifting member 21 to move under the action of the groove wall of the drive groove 214. This causes the lifting member 21 to rotate relative to the seat cushion frame 1 and rotate downward, so that the seat cushion filling at the rear end of the seat cushion moves downward under its own elastic force, thereby completing the descent of the seat cushion filling at the rear end of the seat cushion.

[0050] Since the drive component 23 is located on the outside of the seat cushion frame 1, it can avoid interfering with the internal space of the seat cushion frame 1. On the one hand, this allows for a larger space inside the seat cushion frame 1 to accommodate other functional components that need to be installed inside the seat cushion frame 1, thus facilitating the installation of these components. On the other hand, it avoids the situation where the drive component 23, located inside the seat cushion frame 1, interferes with other functional components of the seat cushion, preventing the installation of other functional components in the seat cushion. This ensures the versatility of the seat cushion's functions.

[0051] This application does not impose specific limitations on the structure of the drive component 23. Preferably, the drive component 23 is a servo motor to achieve precise control of the rotation angle of the lifting component 21. In other embodiments, the drive component 23 may also be a gear reduction motor, etc.

[0052] This application does not specify a particular method for fixing the drive component 23. Preferably, the drive component 23 has a screw, and the side plate 13 has a hole structure for the screw to pass through. A fixing nut is threaded onto the screw, and the fixing nut is pressed against the inner side of the side plate 13 to fix the drive component 23 to the seat frame 1. In other embodiments, the drive component 23 can also be fixedly connected to the side plate 13 by a U-shaped clamp.

[0053] This application does not specifically limit the structure of the drive body 226 or the connection method with the transmission member 22. Preferably, the drive body 226 is a cylindrical structure with a circular cross-section, and the drive body 226 is fixedly connected to the transmission member 22 to ensure that the drive body 226 can slide relative to the drive groove 214 while also being able to rotate relative to the groove wall of the drive groove 214. In other embodiments, the drive body 226 can also be a block structure with a non-circular cross-section, and the drive body 226 is rotatably connected to the transmission member 22.

[0054] This application does not specify the connection method between the output shaft of the transmission component 22 and the drive component 23. Preferably, refer to... Figure 6 and Figure 8 The output shaft of the drive component 23 is provided with a drive gear 231, and the transmission component 22 is provided with a mating body 224 located at the connection position. The mating body 224 is provided with a toothed hole 225 adapted to the drive gear 231, and the drive gear 231 is located in the toothed hole 225.

[0055] It is understood that the drive gear 231 is coaxially fixedly connected to the output shaft of the drive member 23; the aforementioned "the mating body 224 is provided with a toothed hole 225 adapted to the drive gear 231" means that the shape of the toothed hole 225 is the same as the shape of the drive gear 231, that is, after the drive gear 231 is installed in the toothed hole 225, the outer peripheral contour of the drive gear 231 contacts the cavity wall of the toothed hole 225, so that the mating body 224 can rotate synchronously with the output shaft of the drive member 23.

[0056] When the drive component 23 is working, the output shaft of the drive component 23 drives the drive gear 231 to rotate, so that the drive gear 231 drives the transmission component 22 to rotate under the action of the cavity wall of the toothed hole 225, so that the transmission component 22 follows the output shaft of the drive component 23 to rotate.

[0057] In addition, when connecting the output shaft of the transmission component 22 and the drive component 23, it is only necessary to fit the toothed hole 225 provided in the mating body 224 with the drive gear 231. That is, it is only necessary to fit the toothed hole 225 on the outside of the drive gear 231, so as to facilitate the installation of the transmission component 22, thereby reducing the installation difficulty of the transmission component 22 and improving the assembly efficiency of the seat cushion.

[0058] Furthermore, by setting the drive gear 231 and the toothed hole 225, the transmission component 22 rotates with the output shaft of the drive component 23, which can also increase the connection area between the transmission component 22 and the output shaft of the drive component 23, thereby increasing the connection stability between the two.

[0059] Furthermore, refer to Figure 1 and Figure 5 The output shaft of the drive member 23 has an exposed section that passes through the transmission member 22. The exposed section is threaded with a nut, which is located on the side of the transmission member 22 away from the mating body 224.

[0060] It is understandable that the transmission component 22 is provided with a hole structure for the output shaft of the drive component 23 to pass through. After the transmission component 22 is installed on the output shaft of the drive component 23, the part of the output shaft that passes through the transmission component 22 constitutes the exposed section.

[0061] Since the exposed section is threaded with a nut, and the nut is located on the side of the transmission component 22 away from the mating body 224, the nut can be used to limit the transmission component 22, thereby increasing the stability of the connection between the transmission component 22 and the output shaft of the drive component 23, thus ensuring the transmission efficiency between the output shaft of the drive component 23 and the transmission component 22, and thus ensuring the stable operation of the lifting mechanism 2.

[0062] Furthermore, refer to Figure 8 The transmission component 22 includes a connecting section 221, a driving section 222, and a transition section 223 located between the connecting section 221 and the driving section 222. The connecting position is located in the connecting section 221, the driving position is located in the driving section 222, and the transition section 223 extends along the width direction of the seat cushion. The projection of the exposed section toward the transition section 223 is located inside the transition section 223.

[0063] It is understood that one end of the transition section 223 is fixedly connected to the connecting section 221, and the other end of the transition section 223 is fixedly connected to the driving section 222. Both the connecting section 221 and the driving section 222 extend along the length of the seat frame 1, that is, the connecting section 221 and the driving section 222 extend along the front and rear direction of the seat frame 1.

[0064] Since the transition section 223 extends along the width of the seat cushion, and the projection of the exposed section toward the transition section 223 is located inside the transition section 223, on the one hand, the nut and the exposed section can avoid the transmission component 22 to ensure the rotation range of the lifting component 21, thereby ensuring the lifting component 21 can push the seat cushion filling to a certain height. On the other hand, the drive gear 231 can be closer to the side of the seat cushion frame 1, so as to further increase the space reserved inside the seat cushion frame 1 for other functional components, thereby further facilitating the installation of other functional components that need to be installed on the seat cushion frame 1.

[0065] This application does not specifically limit the extension method of the transition section 223 along the width direction of the seat cushion. Preferably, the extension direction of the transition section 223 is parallel to the width direction of the seat cushion. In this case, as long as the length of the transition section 223 is greater than the length of the exposed section, the projection of the exposed section toward the transition section 223 can be located inside the transition section 223. In other embodiments, the extension direction of the transition section 223 can also be set at an angle to the width of the seat cushion, for example, forming an angle of 1°, 3°, 5°, etc.

[0066] In other embodiments, the transmission component 22 can also be connected to the output shaft of the drive component 23 by welding; or the transmission component 22 can be fixedly connected to the output shaft of the drive component 23 by using two nuts that are threaded to the output shaft of the drive component 23 to clamp and fix the transmission component 22.

[0067] The configuration method of drive slot 214 in this application is not specifically limited; preferably, refer to [reference needed]. Figure 7 The lifting member 21 includes a lifting rod 212 and connecting pieces 211 at both ends of the lifting rod 212. The connecting piece 211 has a hinge end that is hinged to the seat frame 1 and a lifting end opposite to the hinge end. The lifting rod 212 is located at the lifting end. The driving groove 214 is provided on one of the connecting pieces 211 and extends along the length direction of the connecting piece 211.

[0068] It is understood that there are two connecting pieces 211, which are fixedly connected to the two ends of the lifting rod 212 respectively; one end of the connecting piece 211 in the length direction constitutes the hinge end, and the other end of the connecting piece 211 in the length direction constitutes the lifting end; in order to facilitate understanding of the technical solution of this application, the two connecting pieces 211 are now defined as the first connecting piece located near the transmission member 22 and the second connecting piece located away from the transmission member 22, and the driving groove 214 is located on the first connecting piece.

[0069] When the seat cushion filling at the rear end of the seat cushion is lifted, the output shaft of the drive member 23 drives the transmission member 22 to rotate in the first direction, so that the transmission member 22 drives the drive body 226 to rotate. The drive body 226 slides relative to the drive groove 214 provided in the connecting piece 211. At the same time, under the cooperation of the drive body 226 and the drive groove 214, the connecting piece 211 drives the lifting rod 212 to rotate upward around the hinge end, so that the lifting rod 212 pushes the seat cushion filling, thereby lifting the seat cushion filling at the rear end of the seat cushion.

[0070] When the seat cushion filling at the rear end of the seat cushion is lowered, the output shaft of the drive member 23 drives the transmission member 22 to rotate in a second direction opposite to the first direction, so that the transmission member 22 drives the drive member 23 to rotate. The drive body 226 slides relative to the drive groove 214 provided on the connecting piece 211. At the same time, under the cooperation of the drive body 226 and the drive groove 214, the connecting piece 211 drives the lifting rod 212 to rotate downward around the hinge end, so that the seat cushion filling moves downward under the action of its own elastic force, thereby realizing the lowering of the seat cushion filling at the rear end of the seat cushion.

[0071] Since the drive groove 214 is located on one of the connecting pieces 211, compared with the solution where the drive groove 214 is a separate component located on the transmission member 22, the manufacturing difficulty of the lifting member 21 is reduced, thereby reducing the manufacturing cost of the seat cushion. At the same time, the stability of the drive groove 214 is ensured, which in turn ensures the driving stability of the drive member 23 to the lifting member 21 through the transmission member 22.

[0072] This application does not specify the hinge method between the connecting piece 211 and the seat cushion frame 1. Preferably, refer to... Figures 2 to 5 The seat frame 1 has a rear horizontal tube 11, with the hinged end sleeved on the outside of the rear horizontal tube 11.

[0073] It is understood that the hinge end of the connecting piece 211 is provided with a through hole, and the rear horizontal tube 11 is provided through the through hole so that the connecting piece 211 is hinged to the seat frame 1 through the rear horizontal tube 11, and the lifting rod 212 is arranged parallel to the rear horizontal tube 11 at intervals.

[0074] Since the hinged end is sleeved on the outside of the rear horizontal tube 11, it realizes the hinge connection between the lifting member 21 and the seat frame 1 on the one hand, and increases the connection stability between the lifting member 21 and the seat frame 1 on the other hand, so as to ensure the stability of the lifting mechanism 2. Furthermore, compared with the existing technology of installing the lifting member 21 to the seat frame 1 by bolt pair, it reduces the installation difficulty of the lifting member 21, thereby improving the assembly efficiency of the seat.

[0075] The better one is to refer to Figure 7A bushing 215 is provided in the center hole and sleeved on the outside of the rear horizontal tube 11. That is, the hole wall of the center hole contacts the outer peripheral surface of the rear horizontal tube 11 through the bushing 215, so as to reduce the wear and abnormal noise generated when the connecting piece 211 rotates around the rear horizontal tube 11.

[0076] The better one is to refer to Figure 3 , Figure 4 and Figure 6 The rear horizontal tube 11 is provided with limiting pieces 111 located on both sides of the connecting piece 211, so as to limit the connecting piece 211 by using the limiting pieces 111 to prevent the connecting piece 211 from moving along the axial direction of the rear horizontal tube 11, thereby increasing the connection stability between the connecting piece 211 and the rear horizontal tube 11.

[0077] In other embodiments, the connecting piece 211 can also be hinged to the seat cushion frame 1 by bolt pairs, that is, the two connecting pieces 211 are respectively connected to the side plate 13 by their respective bolt pairs.

[0078] This application does not specifically limit the positional relationship between the transmission member 22 and the connecting piece 211. Preferably, the transmission member 22 is located on the side of the first connecting piece closer to the drive member 23, so as to reduce the internal space of the seat frame 1 occupied by the lifting mechanism 2. In other embodiments, the transmission member 22 may also be located on the side of the first connecting piece away from the drive member 23.

[0079] This application does not specify the location of the drive slot 214, which can be any of the following embodiments: Example 1, in this example, refers to Figure 7 One of the connecting pieces 211 has an extension arm 213 extending away from the hinge end at the lifting end, and a drive groove 214 is provided in the extension arm 213.

[0080] It is understood that the lifting end of the first connecting piece is provided with an extension arm 213 extending away from the hinge end, and the drive groove 214 is located on the side of the lifting rod 212 away from the rear horizontal tube 11.

[0081] Since the lifting end of the connecting piece 211 extends away from the hinge end and is provided with an extension arm 213, and the drive groove 214 is provided in the extension arm 213, the distance between the connection position of the drive body 226 and the drive groove 214 and the hinge end is increased, thereby reducing the drive load of the drive member 23. Thus, under the premise that the maximum lifting load required by the lifting mechanism 2 remains unchanged, a drive member 23 with relatively low power can be configured for the seat cushion to reduce the manufacturing cost of the seat cushion, or the maximum lifting load of the lifting mechanism 2 can be increased while ensuring that the power of the drive member 23 remains unchanged.

[0082] Example 2: In this example, the drive groove 214 is located between the hinge end and the lifting end.

[0083] Understandably, the drive groove 214 is located between the hinge end and the lifting end of the first connecting piece.

[0084] Since the drive groove 214 is located between the hinge end and the lifting end, the internal space of the seat frame 1 required by the lifting member 21 is reduced, so that more installation space can be reserved for other functional components that need to be installed inside the seat frame 1. This makes it easier to install other functional components that need to be installed inside the seat frame 1, and also allows more other functional components to be installed in the seat frame 1 to ensure increased diversity of seat functions.

[0085] This application does not specifically limit the formation method of the drive slot 214; preferably, refer to... Figure 2 and Figure 4 The drive groove 214 passes through the connecting piece 211 in the thickness direction, and the drive body 226 has a blocking part located on the side of the connecting piece 211 away from the transmission member 22.

[0086] It is understandable that the drive groove 214 is formed by a strip-shaped hole structure located on the first connecting piece.

[0087] Since the drive body 226 is provided with a blocking part located on the side of the connecting piece 211 away from the transmission member 22, and the diameter of the blocking part is larger than the width of the drive groove 214, the blocking part can block the drive body 226 to prevent the drive body 226 from possibly detaching from the drive groove 214, thereby ensuring the connection stability between the drive body 226 and the drive groove 214, and thus ensuring the working stability of the lifting mechanism 2.

[0088] This application does not specifically limit the structure of the blocking part. Preferably, the blocking part is a columnar structure located at the end of the drive body 226 opposite to the transmission member 22, and the diameter of the blocking part is greater than the width of the drive groove 214 (the width of the drive groove 214 refers to the dimension of the drive groove 214 perpendicular to its own extension direction) to ensure the blocking effect of the blocking part on the drive body 226. In other embodiments, the blocking part can also be a block-shaped structure located on the outer peripheral surface of the drive body 226.

[0089] In other embodiments, the connecting piece 211 is provided with a guide rail, and the inside of the guide rail is provided with a groove-shaped structure extending along the length direction of the connecting piece 211, and the opening of the groove-shaped structure faces the side where the transmission member 22 is located. The driving body 226 extends into the inside of the groove-shaped structure through the opening of the groove-shaped structure, that is, the groove-shaped structure inside the guide rail forms a driving groove 214.

[0090] In other embodiments, the lifting member 21 includes a C-shaped rod and an extension plate provided on the C-shaped rod. Both sides of the C-shaped rod with an open end are provided with connecting sleeves that are sleeved on the outside of the rear horizontal tube 11, and the drive groove 214 is provided on the extension plate.

[0091] In a preferred embodiment, the seat cushion also includes a suspension spring and a seat cushion filler. One end of the suspension spring is attached to the front cross tube 12, and the other end of the suspension spring is attached to the lifting member 21. The seat cushion filler is located above the suspension spring so that the suspension spring can support the seat cushion filler to increase the passenger's riding experience.

[0092] This application also discloses a seat, which includes a backrest and a seat cushion as described above.

[0093] Because the seat in this application uses the aforementioned seat cushion, the drive unit 23 can avoid the internal space of the seat cushion frame 1, so that other functional components can be installed in the internal space of the seat cushion frame 1, thereby ensuring the diversity of seat cushion functions and thus ensuring the diversity of seat functions.

[0094] This application also discloses a vehicle that includes a seat cushion or a seat as described above.

[0095] Since the vehicle in this application includes the aforementioned seat cushion or seat, the diversity of seat cushion functions can be guaranteed, thereby ensuring the passenger's driving experience.

[0096] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0097] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0098] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A seat cushion, characterized in that, The device includes a seat cushion frame (1) and a lifting mechanism (2). The lifting mechanism (2) includes a lifting member (21), a transmission member (22), and a driving member (23). The lifting member (21) is located inside the seat cushion frame (1), and one end of the lifting member (21) is hinged to the seat cushion frame (1). The lifting member (21) has a driving groove (214). The driving member (23) is located on the outside of the seat cushion frame (1), and the output shaft of the driving member (23) passes through the seat cushion frame (1). The transmission member (22) is located on the outside of the seat cushion frame (1). Inside the seat frame (1), the transmission member (22) has a connection position and a drive position spaced apart from the connection position. The connection position is connected to the output shaft of the drive member (23). The drive position is connected to a drive body (226) that is slidably connected to the drive groove (214). The transmission member (22) can rotate with the output shaft of the drive member (23) so that the lifting member (21) can rotate relative to the seat frame (1) under the cooperation of the drive body (226) and the drive groove (214).

2. A seat cushion according to claim 1, characterized in that, The output shaft of the drive member (23) is provided with a drive gear (231), and the transmission member (22) is provided with a mating body (224) located at the connection position. The mating body (224) is provided with a toothed hole (225) adapted to the drive gear (231), and the drive gear (231) is located in the toothed hole (225).

3. A seat cushion according to claim 2, characterized in that, The output shaft of the drive member (23) has an exposed section passing through the transmission member (22), and the exposed section is threaded with a nut, which is located on the side of the transmission member (22) away from the mating body (224).

4. A seat cushion according to claim 3, characterized in that, The transmission component (22) includes a connecting section (221), a driving section (222), and a transition section (223) located between the connecting section (221) and the driving section (222). The connecting section is located in the connecting section (221), the driving section is located in the driving section (222), and the transition section (223) extends along the width direction of the seat cushion. The projection of the exposed section toward the transition section (223) is located inside the transition section (223).

5. A seat cushion according to any one of claims 1-4, characterized in that, The lifting member (21) includes a lifting rod (212) and connecting pieces (211) disposed at both ends of the lifting rod (212). The connecting piece (211) has a hinge end that is hinged to the seat frame (1) and a lifting end opposite to the hinge end. The lifting rod (212) is located at the lifting end. The driving groove (214) is disposed on one of the connecting pieces (211) and extends along the length direction of the connecting piece (211).

6. A seat cushion according to claim 5, characterized in that, The seat frame (1) has a rear horizontal tube (11), and the hinged end is sleeved on the outside of the rear horizontal tube (11).

7. A seat cushion according to claim 5, characterized in that, One of the connecting pieces (211) has an extension arm (213) extending from the lifting end toward the direction away from the hinge end, and the drive groove (214) is provided on the extension arm (213). Alternatively, the drive groove (214) may be located between the hinge end and the lifting end.

8. A seat cushion according to claim 5, characterized in that, The drive groove (214) passes through the connecting piece (211) in the thickness direction, and the drive body (226) has a blocking part located on the side of the connecting piece (211) away from the transmission member (22).

9. A type of seat, characterized in that, Includes a backrest and a seat cushion as described in any one of claims 1-8 above.

10. A vehicle, characterized in that, Includes a seat cushion as described in any one of claims 1-8 or a seat as described in claim 9.

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