Automobile seat framework and automobile seat

Abstract

The utility model relates to an automobile seat framework and an automobile seat, the automobile seat framework comprises a base, a backrest framework, a cushion framework and a first driving mechanism, the backrest framework is rotatably connected with the base, the cushion framework comprises a first connecting rod assembly and a second connecting rod assembly, the first end of the first connecting rod assembly is in sliding connection with the base and can rotate relative to the base, the second end of the first connecting rod assembly is hinged to the first end of the second connecting rod assembly, the second end of the second connecting rod assembly is hinged to the base, the first driving mechanism is in sliding connection with the base, and the second driving mechanism is in sliding connection with the base. The first driving mechanism is arranged on the base and connected with the first connecting rod assembly, and the first driving mechanism is arranged to drive the first end of the first connecting rod assembly and the first driving mechanism to slide together relative to the base, so that the shape of the cushion framework is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, and more specifically to an automobile seat frame and an automobile seat. Background Art

[0002] The frame of the automobile seat is usually adjustable, and the occupant can adjust the frame of the automobile seat according to the needs to change it into different postures to achieve different functions. However, the existing frame of the automobile seat does not move smoothly during the posture change process. Utility Model Content

[0003] The utility model aims to provide a car seat frame and a car seat, so that the car seat can move smoothly during the posture change process.

[0004] Based on the above-mentioned purpose, on the one hand, the utility model provides a car seat frame, including a base, a backrest frame, a cushion frame and a first driving mechanism, the backrest frame is rotatably connected to the base, the cushion frame includes a first connecting rod assembly and a second connecting rod assembly, the first end of the first connecting rod assembly is slidably connected to the base and can rotate relative to the base, the second end of the first connecting rod assembly is hinged to the first end of the second connecting rod assembly, the second end of the second connecting rod assembly is hinged to the base, the first driving mechanism is slidably connected to the base and is connected to the first connecting rod assembly, the first driving mechanism is configured to drive the first end of the first connecting rod assembly and the first driving mechanism to slide relative to the base so that the shape of the cushion frame changes.

[0005] Furthermore, the base includes two opposite first fixing seats and two opposite second fixing seats, and a first connecting pipe is connected between the two second fixing seats.

[0006] Furthermore, the first connecting rod assembly includes two opposite first connecting rods, the two first connecting rods are connected together through a second connecting pipe, and the two ends of the second connecting pipe are respectively hinged to the first ends of the two first connecting rods.

[0007] Furthermore, the second connecting rod assembly includes two opposite second connecting rods, the two second connecting rods are connected together by a third connecting tube, and the two ends of the third connecting tube are respectively fixedly connected to the two second connecting rods; the second end of one of the first connecting rods is hinged to the first end of one of the second connecting rods, the second end of the other first connecting rod is hinged to the first end of the other second connecting rod, the second end of one of the second connecting rods is hinged to one of the first fixed seats, and the second end of the other second connecting rod is hinged to the other first fixed seat.

[0008] Furthermore, the first end of the first connecting rod assembly is connected to the base through a first sliding assembly.

[0009] Furthermore, the first sliding assembly includes two opposite first sliding rails, the first sliding rails on both sides correspond to the first fixed seats and the second fixed seats on both sides, the first sliding rails are fixed on the corresponding first fixed seats and the second fixed seats, a first slider is slidably arranged in the first sliding rails, and both ends of the second connecting tube are fixedly connected to the first sliders in the two first sliding rails.

[0010] Furthermore, the first driving mechanism includes a first motor, a first motor bracket and a first transmission mechanism, the two ends of the first motor bracket are respectively fixedly connected to the two first sliders, the first motor is fixed on the first motor bracket, and the first motor is connected to the two first sliders through the first transmission mechanism to drive the two first sliders to slide in their respective first slide rails.

[0011] Furthermore, the first transmission mechanism includes two first screw rods, which are respectively fixed in two first slide rails. A first nut threadedly connected to the first screw rod is sleeved on the outer side of each first screw rod, and each first nut is provided with teeth on the outer side and is connected to a first worm gear. The two first worm gears are connected to the first motor.

[0012] Furthermore, the first sliding assembly includes two opposite slide plates, which are respectively fixed on two second fixed seats, each of which is provided with a slide groove, and the first end of the first connecting rod assembly is provided with two shaft sleeves, which are respectively inserted into the two slide grooves and can slide in their respective slide grooves.

[0013] Furthermore, the first driving mechanism includes a first motor and a motor fixing plate, the first motor is fixed to one of the two first connecting rods through the motor fixing plate, the motor is connected to a gear, a rack is formed on the slide plate on the side where the first motor is located, and the gear is meshed with the rack.

[0014] Furthermore, an extension plate is provided on one end of the second connecting pipe away from the first motor, one of the two shaft sleeves is fixed on the extension plate, and the other of the two shaft sleeves is fixed on a first connecting rod fixed to the first motor.

[0015] Furthermore, the seat cushion frame also includes a seat basin, and the seat basin is fixedly connected to the first connecting rod assembly.

[0016] Furthermore, the backrest frame includes two backrest side panels, an upper backrest bent tube, a lower backrest horizontal plate and two angle adjusters, the two ends of the upper backrest bent tube are respectively fixedly connected to the upper ends of the two backrest side panels, the two ends of the lower backrest horizontal plate are respectively fixedly connected to the lower ends of the two backrest side panels, the lower ends of the two backrest side panels are respectively rotatably connected to the two lower backrest connecting plates through the two angle adjusters, and the two lower backrest connecting plates are respectively fixedly connected to the base.

[0017] Furthermore, it also includes a second sliding assembly and a second driving mechanism, the base is connected to the vehicle body through the second sliding assembly, and the second driving mechanism is connected to the second sliding assembly to drive the base to slide relative to the vehicle body.

[0018] Furthermore, the second sliding assembly includes two opposite second slide rails, each of which has a second slider slidably arranged therein, the first fixed seat and the second fixed seat on one side being fixed on one of the second sliders, and the first fixed seat and the second fixed seat on the other side being fixed on the other second slider.

[0019] Furthermore, the second driving mechanism includes a second motor, a second motor bracket and a second transmission mechanism, the two ends of the second motor bracket are respectively fixedly connected to the two second sliders, the second motor is fixed on the second motor bracket, and the second motor is connected to the two second sliders through the second transmission mechanism to drive the two second sliders to slide in their respective second slide rails.

[0020] Furthermore, the second transmission mechanism includes two second screw rods, which are respectively fixed in two second slide rails. A second nut threadedly connected to the second screw rod is sleeved on the outer side of each second screw rod, and each second nut is provided with teeth on the outer side and is connected to a second worm gear. The two second worm gears are connected to the second motor.

[0021] Another aspect of the utility model provides a car seat, comprising the car seat frame as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the automobile seat frame in the design posture according to the first embodiment of the utility model;

[0023] Figure 2 An exploded view of a car seat frame according to Embodiment 1 of the present utility model;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of a car seat frame with the seat pan removed;

[0025] Figure 4 It is a schematic diagram of the bottom structure of one side of the automobile seat frame according to the first embodiment of the utility model;

[0026] Figure 5 An exploded view of a first sliding assembly and a base of a car seat frame according to Embodiment 1 of the utility model;

[0027] Figure 6It is a structural schematic diagram of the automobile seat frame in the design posture according to the second embodiment of the utility model;

[0028] Figure 7 for Figure 6 Schematic diagram of the structure of a car seat frame with the seat pan removed;

[0029] Figure 8 An exploded view of a first sliding assembly and a base fixed on a second sliding assembly of a car seat frame according to a second embodiment of the utility model;

[0030] Fig. 9 An exploded view of a second sliding assembly and a base of a car seat frame according to a second embodiment of the utility model;

[0031] Fig.10 It is a schematic diagram of the bottom structure of one side of the automobile seat frame according to the second embodiment of the utility model;

[0032] Fig.11 It is a simplified structural diagram of a car seat frame according to the second embodiment of the utility model;

[0033] Fig.12 A side view of the automobile seat frame in the design posture according to the second embodiment of the utility model;

[0034] Fig.13 A side view of the automobile seat frame according to the second embodiment of the utility model in a lying position;

[0035] Fig.14 A side view of the automobile seat frame in a folded position according to the second embodiment of the present utility model;

[0036] Fig.15 It is a schematic structural diagram of the automobile seat frame in the design posture according to the third embodiment of the utility model;

[0037] Fig.16 for Fig.15 Schematic diagram of the structure of a car seat frame with the seat pan removed;

[0038] Fig.17 An exploded view of a base, a first connecting rod assembly, a first sliding assembly and a first driving mechanism of a car seat frame according to a third embodiment of the present utility model;

[0039] Fig.18 It is a partial schematic diagram of the side where the first driving mechanism of the automobile seat frame is located according to the third embodiment of the utility model;

[0040] Fig.19 To remove Fig.18 The schematic diagram of the structure behind the motor fixing plate;

[0041] Fig. 20 for Fig.19 Exploded diagram of

[0042] Fig.21 It is a cross-sectional view showing the assembly relationship among the first driving mechanism, the first sliding assembly and the first connecting rod assembly according to the third embodiment of the present invention. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present utility model are given below in conjunction with the accompanying drawings and described in detail.

[0044] For convenience, in the present invention, directions are marked as XYZ, wherein the X direction is parallel to the ground and points to the front and rear direction of the car, the Y direction is parallel to the ground and points to the left and right direction of the driver, and the Z direction is perpendicular to the ground.

[0045] Embodiment 1:

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the embodiment of the utility model provides a car seat frame, including a base 100, a backrest frame 200, a cushion frame 300 and a first driving mechanism 400, the backrest frame 200 is rotatably connected to the base 100 and can rotate relative to the base 100, the cushion frame 300 includes a first connecting rod assembly 310 and a second connecting rod assembly 320, the first end of the first connecting rod assembly 310 is slidably connected to the base 100 and can rotate relative to the base 100, the second end of the first connecting rod assembly 310 is hinged to the first end of the second connecting rod assembly 320, the second end of the second connecting rod assembly 320 is hinged to the base 100, the first driving mechanism 400 is slidably connected to the base 100, and is connected to the first connecting rod assembly 310, for driving The first end of the first link assembly 310 and the first driving mechanism 400 itself slide together relative to the base 100. In response to the sliding of the first end of the first link assembly 310, the first end of the first link assembly 310 will rotate relative to the base 100, the second end of the first link assembly 310 will rotate relative to the first end of the second link assembly 320, and the second end of the second link assembly 320 will rotate relative to the base 100, thereby changing the seat cushion frame 300 between different forms. The change in form of the seat cushion frame 300 combined with the rotation of the backrest frame 200 relative to the base 100 can make the car seat frame in different postures (such as design posture, lying flat posture, folded posture, etc.), thereby making the car seat frame foldable.

[0047] In some embodiments, the base 100 may include two first fixing seats 110a and 110b opposite to each other along the Y direction and two second fixing seats 120a and 120b opposite to each other along the Y direction, the first fixing seat 110a and the second fixing seat 120a are located on the same side and are arranged in sequence along the X direction, the first fixing seat 110b and the second fixing seat 120b are located on the same side and are arranged in sequence along the X direction, the first fixing seat 110a is located in front of the second fixing seat 120a, and the first fixing seat 110b is located in front of the second fixing seat 120b. A first connecting pipe 130 may be connected between the two second fixing seats 120a and 120b, which can be used to enhance the structural strength.

[0048] In some embodiments, the first connecting rod assembly 310 may include two first connecting rods 311a and 311b opposite to each other along the Y direction, the two first connecting rods 311a and 311b both extend along the X direction, the first ends of the two first connecting rods 311a and 311b are connected together through a second connecting tube 312, and the first ends of the two first connecting rods 311a and 311b are respectively hinged to the two ends of the second connecting tube 312, so that the first ends of the two first connecting rods 311a and 311b and the second connecting tube 312 form a first connecting rod. The first end of the rod assembly 310 allows the first connecting rods 311a and 311b to rotate relative to the second connecting tube 312, and the second connecting tube 312 is slidably connected to the base 100. In this way, the first ends of the two first connecting rods 311a and 311b can both rotate relative to the base 100 and slide relative to the base 100; the second ends of the two first connecting rods 311a and 311b form the second end of the first connecting rod assembly 310 and are hinged to the first end of the second connecting rod assembly 320.

[0049] The second connecting rod assembly 320 may include two opposite second connecting rods 321a and 321b, and the two second connecting rods 321a and 321b are connected together by a third connecting tube 322. The third connecting tube 322 extends along the Y direction, and the two ends are fixedly connected to the second connecting rod 321a and the second connecting rod 321b respectively; the first ends of the two second connecting rods 321a and 321b form the first end of the second connecting rod assembly 320, the first end of the second connecting rod 321a is hinged to the second end of the first connecting rod 311a, and the first end of the second connecting rod 321b is hinged to the second end of the first connecting rod 311b; the second ends of the two second connecting rods 321a and 321b are jointly formed as the second end of the second connecting rod assembly 320, and are hinged to the base 100, wherein the second end of the second connecting rod 321a is hinged to the first fixed seat 110a, and the second end of the second connecting rod 321b is hinged to the first fixed seat 110b.

[0050] In some embodiments, the first end of the first connecting rod assembly 310 can be connected to the base 100 through a first sliding assembly 330. The first sliding assembly 330 may include two opposite first slide rails 331a and 331b, both of which extend along the X direction, the first slide rail 331a is partially fixed on the first fixed seat 110a and partially fixed on the second fixed seat 120a, the second slide rail 331b is partially fixed on the first fixed seat 110b and partially fixed on the second fixed seat 120b, a first slider 332a is slidably disposed in the first slide rail 331a, the first slider 332a can slide along the first slide rail 331a, and a first slider 332a is slidably disposed in the first slide rail 331b. 32b, the first slider 332b can slide along the first slide rail 331b, and the two ends of the second connecting tube 312 are fixedly connected to the two first sliders 332a and 332b respectively, so that the second connecting tube 312 can slide along the first slide rail 331b with the two first sliders 332a and 332b, and the two first connecting rods 311a and 311b can move with the second connecting tube 312. In this way, the two first connecting rods 311a and 311b can slide relative to the base 100 and can rotate relative to the second connecting tube 312 during the sliding process, that is, rotate relative to the base 100.

[0051] In some embodiments, two first fixing plates 313a and 313b may be provided on the second connecting tube 312, wherein the first fixing plate 313a is fixed to one end of the second connecting tube 312, and the first fixing plate 313b is fixed to the other end of the second connecting tube 312, the fixing point between the first fixing plate 313a and the second connecting tube 312 may be adjacent to the hinge point between the first connecting rod 311a and the second connecting tube 312, the fixing point between the first fixing plate 313b and the second connecting tube 312 may be adjacent to the hinge point between the first connecting rod 311b and the second connecting tube 312, the first fixing plate 313a is fixed on the first slider 332a, and the first fixing plate 313b is fixed on the first slider 332b, so that the second connecting tube 312 can slide relative to the base 100.

[0052] In some embodiments, the first driving mechanism 400 may include a first motor 410, a first motor bracket 420 and a first transmission mechanism, the two ends of the first motor bracket 420 are respectively fixedly connected to the two first sliders 332a and 332b, the first motor 410 is fixed on the first motor bracket 420, and the first motor 410 is connected to the two first sliders 332a and 332b through the first transmission mechanism to drive the two first sliders 332a and 332b to slide in the two first slide rails 331a and 331b respectively.

[0053] In some embodiments, the first transmission mechanism may include two first screw rods 430a, 430b, two first nuts (not shown in the figure) and two first worms, the first screw rod 430a is fixed in the first slide rail 331a, the first screw rod 430b is fixed in the first slide rail 331b, one of the first nuts is sleeved on the outside of the first screw rod 430a and is threadedly connected to the first screw rod 430a, the other first nut is sleeved on the outside of the first screw rod 430b and is threadedly connected to the first screw rod 430b, the outside of the two first nuts are provided with teeth, one of the first worms is meshed with the teeth on the outside of one of the first nuts, and the other first worm is meshed with the teeth on the outside of the other The teeth on the outer sides of the first nuts are meshed, and the first motor 410 is connected to the two first worm gears respectively to drive the two first worm gears to rotate. The rotation of the first worm gear will cause the first nut meshed with it to rotate, and then cause the first nut to slide on the first screw rod threadedly connected to it. Since the first screw rod remains fixed, the first motor 410, the first motor bracket 420, the two first nuts and the two first worm gears will all slide relative to the first screw rod, and the first motor bracket 420 is fixedly connected to the first slider, so that the first slider can also follow the movement of the first nut. In this way, the first slider can be driven to slide in its corresponding first slide rail by the first motor 410.

[0054] In some embodiments, the output shaft of the first motor 410 may extend along the Y direction, and both ends are respectively connected to the two first worm gears, so that the two first worm gears rotate synchronously at the same speed, thereby ensuring the synchronous movement of the two first connecting rods 311a and 311b.

[0055] Since a ball screw structure is formed between the first nut and the first screw rod, the movement is smooth, so that the first connecting rod assembly 310 slides more smoothly relative to the base 100, that is, the car seat frame can move smoothly during the folding process.

[0056] In some embodiments, the seat cushion frame 300 may also include a seat basin 340, which may be fixedly connected to the first link assembly 310 to move with the first link assembly 320. The seat basin 340 is used to at least partially support the occupant's thighs and prevent the occupant from sinking during a collision.

[0057] like Figure 3 As shown, in some embodiments, the seat basin 340 can be fixed to the first connecting rod assembly 320 via a fourth connecting tube 341. Specifically, both ends of the fourth connecting tube 341 are fixedly connected to the second end of the first connecting rod 311a and the second end of the first connecting rod 311b, respectively. The fourth connecting tube 341 is provided with at least one fixing member 342, which is fixed to the seat basin 340.

[0058] Continue to refer to Figure 2 and Figure 3In some embodiments, the backrest frame 200 may include two backrest side panels 210a, 210b, an upper backrest curved tube 220, a lower backrest horizontal plate 230 and two angle adjusters 240a, 240b, the two ends of the upper backrest curved tube 220 are respectively fixedly connected to the upper ends of the two backrest side panels 210a, 210b (for example, welded), the two ends of the lower backrest horizontal plate 230 are respectively fixedly connected to the lower ends of the two backrest side panels 210a, 210b (for example, welded), and the lower end of the backrest side panel 210a is also The backrest side plate 210b is rotatably connected to the second fixed seat 120a through the recliner 240a, and the lower end of the backrest side plate 210b is also rotatably connected to the second fixed seat 120b through the recliner 240b; the two recliners 240a, 240b are connected through a synchronization rod 250, and the synchronization rod 250 is connected to the third motor 260, so as to drive the two recliners 240a, 240b to rotate through the third motor 260, thereby driving the backrest frame 200 to rotate relative to the base 100 and hover at any position.

[0059] In some embodiments, the backrest side panel 210a can be rotatably connected to the lower backrest connecting plate 270a through the angle adjuster 240a, the backrest side panel 210b can be rotatably connected to the lower backrest connecting plate 270b through the angle adjuster 240b, the lower backrest connecting plate 270a is fixedly connected to the second fixed seat 120a (for example, welded), and the lower backrest connecting plate 270b is fixedly connected to the second fixed seat 120b.

[0060] In some embodiments, two headrest mounting tubes 280 are spaced apart on the upper curved tube 220 of the backrest for mounting a headrest.

[0061] The automobile seat frame of the first embodiment of the utility model drives the first end of the first connecting rod assembly 310 to slide and rotate relative to the base 100 through the first driving mechanism 400, thereby changing the shape of the seat cushion frame 300 to achieve the folding of the automobile seat frame. Since the movement of the first connecting rod assembly 310 is driven by the cooperation of the nut and the screw rod, the automobile seat frame can move smoothly during the posture change process.

[0062] Embodiment 2

[0063] like Figure 6 and Figure 7 As shown, the second embodiment of the utility model provides a car seat frame, which, based on the car seat frame of the first embodiment, also includes a second sliding assembly 500 and a second driving mechanism 600. The base 100 is connected to the vehicle body through the second sliding assembly 500, so that the base 100 can slide along the X direction relative to the vehicle body. In this way, the base 100, the backrest frame 200 and the cushion frame 300 can slide forward and backward as a whole relative to the vehicle body, so as to adjust the front and rear position of the car seat frame.

[0064] like Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, in some embodiments, the second sliding assembly 500 may include two second slide rails 510a and 510b opposite to each other along the Y direction, the two second slide rails 510a and 510b both extend along the X direction, a second slider 520a is slidably disposed in the second slide rail 510a, a second slider 520b is slidably disposed in the second slide rail 510b, the second sliders cooperate with their respective second slide rails and can slide in the second slide rails, the first fixed seat 110a and the second fixed seat 120a are both fixed on the second slider 520a, and the first fixed seat 110b and the second fixed seat 120b are both fixed on the second slider 520b, so that the base 100 can slide on the two second slide rails, and the two second slide rails 510a, 510b can be fixed on the vehicle body, so that the base 100 can slide along the X direction relative to the vehicle body to achieve the front and rear position adjustment of the automobile seat frame; the second driving mechanism 600 is connected to the two second sliders 520a, 520b to drive the two second sliders 520a, 520b to slide on the second slide rails, thereby achieving the front and rear position adjustment of the automobile seat frame.

[0065] In some embodiments, the second driving mechanism 600 may include a second motor 610, a second motor bracket 620 and a second transmission mechanism, the two ends of the second motor bracket 620 are respectively fixedly connected to the two second sliders 520a and 520b, the second motor 610 is fixed on the second motor bracket 620, and the second motor 610 is connected to the two second sliders 520a and 520b through the second transmission mechanism to drive the two second sliders 520a and 520b to slide in the two second slide rails 510a and 510b respectively.

[0066] In some embodiments, the second transmission mechanism may include two second screw rods 630a, 630b, two second nuts (not shown in the figure) and two second worms, the second screw rod 630a is fixed in the second slide rail 510a, the second screw rod 630b is fixed in the second slide rail 510b, one of the second nuts is sleeved on the outside of the second screw rod 630a and is threadedly connected to the second screw rod 630a, the other second nut is sleeved on the outside of the second screw rod 630b and is threadedly connected to the second screw rod 630b, the outside of the two second nuts are provided with teeth, one of the second worms is meshed with the teeth on the outside of one of the second nuts, and the other second worm is meshed with the teeth on the outside of the other The teeth on the outer sides of the second nuts are meshed, and the second motor 610 is connected to the two second worm gears respectively to drive the two second worm gears to rotate. The rotation of the second worm gear will cause the second nut meshed with it to rotate, and then cause the second nut to slide on the second screw rod threadedly connected to it. Since the second screw rod remains fixed, the second motor 610, the second motor bracket 620, the two second nuts and the two second worm gears will all slide relative to the second screw rod, and the second motor bracket 620 is fixedly connected to the second slider, so that the second slider can also follow the movement of the second nut. In this way, the second slider can be driven to slide in its corresponding second slide rail by the second motor 610.

[0067] In some embodiments, the output shaft of the second motor 610 can extend along the Y direction, and the two ends are respectively connected to the two second worm gears, so that the two second worm gears rotate synchronously at the same speed, thereby ensuring the synchronous movement of the two second connecting rods 510a and 510b.

[0068] like Fig.11 As shown, the backrest frame 200 can rotate relative to the base 100, the first end (i.e., the rear end) of the first connecting rod assembly 310 is slidably connected to the base 100 through the first sliding assembly 330, and the base 100 is slidably connected to the vehicle body 700 through the second sliding assembly 500. The first driving mechanism 400 can drive the first end of the first connecting rod assembly 310 to slide forward and backward, thereby changing the shape of the cushion frame 300, and combined with the rotation of the backrest frame 200, the automobile seat frame can be changed between different postures. The second driving mechanism 600 can drive the base 100 to slide relative to the vehicle body 700, thereby adjusting the front and rear position of the automobile seat frame.

[0069] like Fig.12 As shown, when the automobile seat frame is in the design posture, the angle α (for example, 110°-120°) between the backrest frame 200 and the horizontal plane (i.e., the XY plane) is formed, the first end of the first connecting rod assembly 310 is located near the backrest frame 200, and the cushion frame 200 is in the first form. At this time, the automobile seat can be sat on normally by the occupants. Fig.12On the basis of the above, the backrest frame 200 can be rotated backwards by a first preset angle β (60°-70°) so that the angle between the backrest frame 200 and the horizontal plane is about 180°, so that the car seat frame can be switched to the position as shown in FIG. Fig.13 In the flat-lying position shown, the car seat can be combined with the rear seats to form a bed for the occupants to lie flat. Fig.12 On the basis of the embodiment of the present invention, the first end of the first connecting rod assembly 310 can also be slid forward relative to the base 100 (i.e., in the direction away from the backrest frame 200) by a preset distance (e.g., a distance of more than 185 mm), so that the seat cushion frame 300 moves forward as a whole and the height is reduced, so that the seat cushion frame 200 changes to the second form, and then the backrest frame 200 is rotated forward by a second preset angle θ (e.g., 90°-97°), so that the backrest frame 200 is basically attached to the seat cushion frame 300, so that the automobile seat frame is switched to the second form. Fig.14 In the folded position shown, the vehicle seat frame takes up less space.

[0070] The automobile seat frame of the second embodiment of the present invention is additionally provided with a second sliding assembly 500 and a second driving mechanism 600 on the basis of the first embodiment. The occupants can adjust the front and rear positions of the automobile seat frame through the second driving mechanism 600, thereby improving the comfort of the occupants.

[0071] Embodiment 3

[0072] like Fig.15 and Fig.16 As shown, the third embodiment of the utility model provides a car seat frame, which is different from the second embodiment in that the structures of the first sliding assembly 330 and the first driving mechanism 400 are different. Specifically, in this embodiment, the first sliding assembly 330 includes two slide groove plates 333a and 333b opposite to each other along the Y direction, the slide groove plate 333a is fixed on the second fixed seat 120a, the slide groove plate 333b is fixed on the second fixed seat 120b, the slide groove plate 333a is provided with a slide groove 3331a extending along the X direction, and the slide groove plate 333b is provided with a slide groove 3331b extending along the X direction, and a shaft sleeve 334 is fixed to both sides of the Y direction of the first end of the first connecting rod assembly 310, and the two shaft sleeves 334 are respectively inserted into the two slide grooves and can slide in their respective slide grooves, so that the first end of the first connecting rod assembly 310 is slidably connected with the two slide grooves.

[0073] like Fig.17 , Fig.18 , Fig.19 , Fig. 20 and Fig.21As shown, the first driving mechanism 400 includes a first motor 410 and a motor fixing plate 440. The first motor 410 is fixed to one of the two first connecting rods (hereinafter, the first connecting rod 311a is used as an example for description) through the motor fixing plate 440. The first motor 410 is connected to a gear 450. A rack 3332 extending along the X direction is formed on the slide plate 333b, and the gear 450 is meshed with the rack 3332. When the first motor 410 rotates, the gear 450 is driven to rotate. The rotation of the gear 450 will cause relative movement between the gear 450 and the rack 3332. Since the rack 3332 remains fixed, the rack 450 will move relative to the rack 3332, so that the first driving mechanism 400 and the first connecting rod assembly 310 slide together along the X direction.

[0074] One of the two sleeves 334 can be fixed on the first connecting rod 311a, and it passes through the first connecting rod 311a from one side and then is inserted into the slide groove 3331a, and then passes through the motor fixing plate 440, and then the screw 335 is fixedly connected with the sleeve 334 from the other side to prevent the sleeve 334 from falling off from the slide groove 3331a. An extension plate 336 is fixed on one end of the second connecting pipe 312 away from the first connecting rod 311a, and the other of the two sleeves 334 is fixed on the extension plate 336 and slidably set in the slide groove 3331a.

[0075] It is understandable that the first sliding assembly 330 and the first driving mechanism 400 of the automobile seat frame in the first embodiment may also be replaced with the structural form in this embodiment to obtain a new automobile seat frame.

[0076] The automobile seat frame of the embodiment of the utility model enables the first connecting rod assembly 310 to slide relative to the base 100 through the cooperation of the gear and the rack, thereby realizing the posture change of the automobile seat frame, and can make the automobile seat frame move smoothly during the posture change process.

[0077] Embodiment 4

[0078] A fourth embodiment of the present invention provides a car seat, which includes a car seat frame as described in any of the above embodiments.

[0079] It should be noted that the utility model (e.g., utility model concepts, etc.) has been described in the specification of this patent document and / or illustrated in the drawings according to exemplary embodiments; the embodiments of the utility model are presented only by way of example and are not intended to limit the scope of the utility model. The structure and / or arrangement of the elements of the utility model concepts embodied in the utility model as described in the specification and / or illustrated in the drawings are merely illustrative. Although exemplary embodiments of the utility model have been described in detail in this patent document, it is easy for a person of ordinary skill in the art to understand that equivalents, modifications, variations, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the utility model; all of these subject matters (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the utility model. It should also be noted that various / other modifications, changes, substitutions, equivalents, changes, omissions, etc. can be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concepts, designs, structures, devices, forms, assemblies, constructions, means, functions, systems, processes / methods, steps, the order of process / method steps, operations, operating conditions, performances, materials, compositions, combinations, etc.) without departing from the scope of the present invention; all of these subjects (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter described in the specification and / or drawings of this patent document (e.g., details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.). Considering that the claims of this patent document will be appropriately interpreted as covering the full scope of the subject matter of the present invention (e.g., including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments, rather than as a limitation on the scope of the present invention.

[0080] It should also be noted that, according to the exemplary embodiments, the present invention may include conventional technologies (such as technologies implemented and / or integrated in the exemplary embodiments, modifications, changes, combinations, equivalents), or may include any other applicable technologies (now and / or in the future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All of these technologies (such as technologies implemented in embodiments, modifications, changes, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. A car seat frame, characterized in that: It includes a base, a backrest frame, a seat cushion frame and a first driving mechanism, the backrest frame is rotatably connected to the base, the seat cushion frame includes a first connecting rod assembly and a second connecting rod assembly, the first end of the first connecting rod assembly is slidably connected to the base and can rotate relative to the base, the second end of the first connecting rod assembly is hinged to the first end of the second connecting rod assembly, the second end of the second connecting rod assembly is hinged to the base, the first driving mechanism is slidably connected to the base and connected to the first connecting rod assembly, and the first driving mechanism is configured to drive the first end of the first connecting rod assembly and the first driving mechanism to slide relative to the base so that the shape of the seat cushion frame changes.

2. The automobile seat frame according to claim 1, characterized in that: The base includes two opposite first fixing seats and two opposite second fixing seats, and a first connecting pipe is connected between the two second fixing seats.

3. The automobile seat frame according to claim 2, characterized in that: The first connecting rod assembly includes two opposite first connecting rods, the two first connecting rods are connected together through a second connecting pipe, and the two ends of the second connecting pipe are respectively hinged to the first ends of the two first connecting rods.

4. The automobile seat frame according to claim 3, characterized in that: The second connecting rod assembly includes two opposite second connecting rods, and the two second connecting rods are connected together by a third connecting tube, and the two ends of the third connecting tube are respectively fixedly connected to the two second connecting rods; the second end of one of the first connecting rods is hinged to the first end of one of the second connecting rods, and the second end of the other first connecting rod is hinged to the first end of the other second connecting rod, the second end of one of the second connecting rods is hinged to one of the first fixed seats, and the second end of the other second connecting rod is hinged to the other first fixed seat.

5. The automobile seat frame according to claim 3, characterized in that: The first end of the first connecting rod assembly is connected to the base through a first sliding assembly.

6. The automobile seat frame according to claim 5, characterized in that: The first sliding assembly includes two opposite first sliding rails, the first sliding rails on both sides correspond to the first fixed seats and the second fixed seats on both sides, the first sliding rails are fixed on the corresponding first fixed seats and the second fixed seats, a first slider is slidably arranged in the first sliding rails, and the two ends of the second connecting tube are respectively fixedly connected to the first sliders in the two first sliding rails.

7. The automobile seat frame according to claim 6, characterized in that: The first driving mechanism includes a first motor, a first motor bracket and a first transmission mechanism. The two ends of the first motor bracket are respectively fixedly connected to the two first sliders. The first motor is fixed on the first motor bracket. The first motor is connected to the two first sliders through the first transmission mechanism to drive the two first sliders to slide in their respective first slide rails.

8. The automobile seat frame according to claim 7, characterized in that: The first transmission mechanism includes two first screw rods, which are respectively fixed in two first slide rails. A first nut threadedly connected to the first screw rod is sleeved on the outer side of each first screw rod. Each first nut is provided with teeth on the outer side and is connected to a first worm. The two first worms are connected to the first motor.

9. The automobile seat frame according to claim 5, characterized in that: The first sliding assembly includes two opposite slide plates, which are respectively fixed on two second fixed seats, each of which is provided with a slide groove, and the first end of the first connecting rod assembly is provided with two shaft sleeves, which are respectively inserted into the two slide grooves and can slide in their respective slide grooves.

10. The automobile seat frame according to claim 9, characterized in that: The first driving mechanism includes a first motor and a motor fixing plate, the first motor is fixed to one of the two first connecting rods through the motor fixing plate, the motor is connected to a gear, a rack is formed on the slide plate on the side where the first motor is located, and the gear is meshed with the rack.

11. The automobile seat frame according to claim 10, characterized in that: An extension plate is provided on one end of the second connecting pipe away from the first motor, one of the two shaft sleeves is fixed on the extension plate, and the other of the two shaft sleeves is fixed on a first connecting rod fixed to the first motor.

12. The automobile seat frame according to claim 1, characterized in that: The seat cushion frame also includes a seat basin, and the seat basin is fixedly connected to the first connecting rod assembly.

13. The automobile seat frame according to claim 1, characterized in that: The backrest frame includes two backrest side panels, an upper backrest curved tube, a lower backrest horizontal plate and two angle adjusters, the two ends of the upper backrest curved tube are respectively fixedly connected to the upper ends of the two backrest side panels, the two ends of the lower backrest horizontal plate are respectively fixedly connected to the lower ends of the two backrest side panels, the lower ends of the two backrest side panels are respectively rotatably connected to the two backrest lower connecting plates through the two angle adjusters, and the two backrest lower connecting plates are respectively fixedly connected to the base.

14. The automobile seat frame according to claim 2, characterized in that: It also includes a second sliding assembly and a second driving mechanism, the base is connected to the vehicle body through the second sliding assembly, and the second driving mechanism is connected to the second sliding assembly to drive the base to slide relative to the vehicle body.

15. The automobile seat frame according to claim 14, characterized in that: The second sliding assembly includes two opposite second sliding rails, each of which is slidably provided with a second sliding block, the first fixed seat and the second fixed seat on one side are fixed on one of the second sliding blocks, and the first fixed seat and the second fixed seat on the other side are fixed on the other second sliding block.

16. The automobile seat frame according to claim 15, characterized in that: The second driving mechanism includes a second motor, a second motor bracket and a second transmission mechanism. The two ends of the second motor bracket are respectively fixedly connected to the two second sliders. The second motor is fixed on the second motor bracket. The second motor is connected to the two second sliders through the second transmission mechanism to drive the two second sliders to slide in their respective second slide rails.

17. The automobile seat frame according to claim 16, characterized in that: The second transmission mechanism includes two second screw rods, which are respectively fixed in two second slide rails. A second nut threadedly connected to the second screw rod is sleeved on the outer side of each second screw rod. Each second nut is provided with teeth on the outer side and is connected to a second worm. The two second worms are connected to the second motor.

18. A car seat, characterized in that: The invention comprises a car seat frame as claimed in any one of claims 1 to 17.

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