Zero-gravity automobile seat

Abstract

The utility model relates to a zero-gravity automobile seat which comprises a cushion wall plate and a sliding rail assembly and further comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. The first end of the second connecting rod is hinged to the first connecting rod, and the second end is hinged to the sliding rail assembly; one end of the driving screw rod is hinged with the seat cushion wall plate; the driving motor is in driving connection with the driving screw rod and can drive the driving screw rod to rotate; the driving sliding block is in threaded connection with the driving lead screw and hinged to the second end of the first connecting rod; when the driving motor drives the driving lead screw to rotate, the driving sliding block can move along the driving lead screw, and then the first connecting rod and the second connecting rod are driven to rotate and adjust, so that lifting adjustment or falling-back adjustment of the front end of the seat cushion wall plate is achieved. According to the driving mode of the zero-gravity automobile seat, the stress stability of the driving lead screw is facilitated, the phenomena of instability and the like are avoided, the safety and the stability of the driving lead screw are improved, and the safety and the stability of the zero-gravity automobile seat are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a zero-gravity automobile seat. Background Art

[0002] The full name of zero-gravity seat is Zero-Gravity-Seats, which is a technology used in car seats. It refers to ergonomic theory and improves passenger comfort by reducing gravity concentration.

[0003] Zero-pressure posture adjustment in zero-gravity car seats is achieved by adjusting the front end of the seat to lift. An existing solution involves installing a connecting rod mechanism and a drive mechanism at the front end of the seat cushion assembly. The drive mechanism then drives the connecting rod mechanism to rotate, thereby lifting the front end of the seat cushion assembly. This drive mechanism utilizes a lead screw motor, which uses the extension of the lead screw to drive the connecting rod mechanism to rotate, thereby lifting the front end of the seat cushion assembly. The lead screw motor supports the connecting rod mechanism and the seat cushion assembly. If the car is impacted or subjected to other external forces, or if the seat cushion assembly is compressed, the load will directly press on the lead screw, which is very susceptible to bending under pressure, leading to instability and other problems. Therefore, a safe and stable solution is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a zero-gravity car seat to solve the problem that the existing drive mechanism uses a telescopic screw rod to drive the connecting rod for rotation adjustment, and the screw rod is easily compressed and bent, thereby causing instability.

[0005] The technical solution to achieve the above purpose is:

[0006] The utility model provides a zero-gravity car seat, comprising a seat cushion wall panel and a slide rail assembly, and the zero-gravity car seat further comprises:

[0007] a first connecting rod, wherein a first end of the first connecting rod is hingedly connected to a front portion of the seat cushion wall panel;

[0008] a second connecting rod, wherein a first end of the second connecting rod is hinged to the first connecting rod, and a second end of the second connecting rod is hinged to the slide rail assembly;

[0009] a driving screw rod, one end of which is hinged to the seat cushion wall panel;

[0010] A driving motor, the driving motor is connected to the driving screw, and the driving motor can drive the driving screw to rotate;

[0011] a driving slider, wherein the driving slider is screwed onto the driving screw rod and is hinged to the second end of the first connecting rod;

[0012] When the driving motor drives the driving screw to rotate, the driving slider can move along the driving screw, thereby driving the first connecting rod and the second connecting rod to rotate and adjust, thereby realizing the lifting adjustment or lowering adjustment of the front end of the seat cushion wall panel.

[0013] A further improvement of the zero-gravity car seat of the present invention is that the drive screw is arranged on the inner side of the seat cushion wall panel, and the other end of the drive screw is extended toward the interior of the zero-gravity car seat in an inclined downward state.

[0014] A further improvement of the zero-gravity car seat of the present invention is that when the driving screw drives the first connecting rod to rotate and adjust, the angle between the setting direction of the first connecting rod and the setting direction of the seat cushion wall panel can be increased or decreased, thereby adjusting the front end of the seat cushion wall panel to a raised state or a lowered state.

[0015] A further improvement of the zero-gravity car seat of the present invention is that the driving motor is provided with one and the driving screw rods are provided with two;

[0016] The driving motor is connected to the two driving screw rods via a flexible shaft, thereby driving the two driving screw rods to rotate.

[0017] A further improvement of the zero-gravity car seat of the present invention is that two driving sliders are also provided, each of which is screwed onto a corresponding driving screw rod;

[0018] A reinforcing rod is connected between the two driving slide blocks.

[0019] A further improvement of the zero-gravity car seat of the present invention is that a waist-shaped groove is provided on the first connecting rod;

[0020] A limiting bolt is provided on the seat cushion wall plate corresponding to the waist-shaped groove, and the limiting bolt passes through the waist-shaped groove;

[0021] When the front end of the seat cushion wall panel is in a retracted state, the limiting bolt abuts against the lower end of the waist-shaped groove.

[0022] A further improvement of the zero-gravity car seat of the present invention is that the limiting bolt is a stepped bolt, and the head of the stepped bolt is in contact with the corresponding side surface of the first connecting rod.

[0023] A further improvement of the zero-gravity car seat of the present invention is that the second connecting rod includes an integrally formed first rod portion and a second rod portion;

[0024] An angle is formed at a connection between the first rod portion and the second rod portion, and the angle is greater than 90° and less than 180°;

[0025] When the zero-gravity car seat is in a designed position, the connection between the first rod portion and the second rod portion is located below the limiting bolt.

[0026] A further improvement of the zero-gravity car seat of the present invention is that the seat cushion wall panels are provided with two, and the front supports of the two seat cushion wall panels are connected to the front tube;

[0027] One end of the driving screw is hinged to the front tube.

[0028] A further improvement of the zero-gravity car seat of the present invention is that the first end of the second connecting rod is hingedly connected to the middle portion of the first connecting rod.

[0029] The beneficial effects of the zero-gravity car seat of the utility model are:

[0030] The zero-gravity car seat of the present invention is provided with a drive motor, a drive screw, and a drive slider. Its driving principle is as follows: the drive motor drives the corresponding drive screw to rotate. The rotation of the drive screw enables the drive slider to move along the drive screw (the drive slider can move toward one end of the drive screw or toward the other end of the drive screw). The movement of the drive slider then pulls the second end of the first connecting rod, allowing the second end of the first connecting rod to rotate around the first end, thereby achieving the lifting or lowering adjustment of the front end of the zero-gravity car seat. In the above-mentioned driving method, when the seat cushion assembly is subjected to a forward load, the load acts on the drive slider, which pulls the drive screw downward. That is, the force applied to the drive screw is a tensile force, which is beneficial to the force stability of the drive screw, avoids the occurrence of instability and the like, improves the safety and stability of the drive screw, and thus improves the safety and stability of the zero-gravity car seat.

[0031] In this zero-gravity car seat, one end of the drive screw is hinged to the seat cushion wall, while the other end extends diagonally downward toward the interior of the seat. This allows the drive screw to be completely retracted within the seat cushion assembly, without affecting the front space of the seat cushion and thus fully utilizing the space. The non-exposed drive screw also enhances the aesthetics of the seat cushion.

[0032] The zero-gravity car seat of the present invention is further provided with a reinforcing rod between the two driving sliders, which, together with the front tubes at the front of the two seat cushion wall panels, forms a stable square frame structure with the two driving screw rods, thereby enhancing the structural rigidity and structural stability of the driving screw rods and the driving sliders.

[0033] The zero-gravity car seat of this utility model also features a reinforcement rod positioned between the two drive sliders. This reinforcement rod supports the first connecting rods on either side through the drive sliders, thereby enhancing the structural rigidity and stability of the first connecting rods. Furthermore, the heads of the stepped bolts abut against corresponding side surfaces of the first connecting rods, further enhancing the structural rigidity and stability of the first connecting rods.

[0034] The zero-gravity car seat of the present invention, when the front end of the seat is in the retracted state, the limit bolt abuts against the lower end of the waist-shaped groove, which can withstand the load on the seat cushion and share the force with the first connecting rod and the second connecting rod, thereby reducing the weight and cost of the seat while meeting structural requirements.

[0035] The zero-gravity car seat of the utility model is provided with a driving motor to achieve synchronous driving of two driving screws, which can reduce the cost of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the connection between the seat cushion assembly and the slide rail assembly of the zero-gravity car seat of the present invention.

[0037] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the front structure of the seat cushion assembly in the structure shown.

[0038] Figure 3 This is a schematic diagram of the exploded structure of the seat cushion wall panel, first connecting rod, second connecting rod and driving screw connection structure in the zero-gravity car seat of the present invention.

[0039] Figure 4 It is a partial enlarged schematic diagram of the connection between the seat cushion wall panel, the first connecting rod, the second connecting rod and the driving screw in the zero-gravity car seat of the present invention.

[0040] Figure 5 This is a side view of the front end of the seat cushion wall panel of the zero-gravity car seat of the present invention in a retracted state.

[0041] Figure 6 This is a side view of the zero-gravity car seat of the present invention with the front end of the seat cushion wall panel in a raised state.

[0042] Figure 7 It is a schematic diagram of the three-dimensional structure of the zero-gravity car seat of the present invention, in which the front end of the seat cushion wall panel is in a retracted state and the rear end is in a low position, that is, the designed position.

[0043] Figure 8 for Figure 7 The structure shown omits the cover plate to reveal a side view of the first link and the second link.

[0044] Figure 9The figure is a schematic diagram showing the positional relationship between the first connecting rod, the second connecting rod and the seat cushion wall panel of the zero-gravity car seat of the present invention when the seat cushion wall panel is in the designed position.

[0045] Figure 10 It is a three-dimensional structural diagram of the utility model in which the front end of the seat cushion wall panel of the zero-gravity car seat is in a raised state and the rear end is in a low position, that is, a low-pressure position.

[0046] Figure 11 for Figure 10 The structure shown omits the cover plate to reveal a side view of the first link and the second link.

[0047] Figure 12 The utility model is a schematic diagram of the positional relationship between the first connecting rod, the second connecting rod and the seat cushion wall panel when the seat cushion wall panel of the zero-gravity car seat is in the low zero-pressure position.

[0048] Figure 13 It is a schematic diagram of the three-dimensional structure of the zero-gravity car seat of the present invention, in which the front end of the seat cushion wall panel is in a retracted state and the rear end is in a high position, that is, in a high-position retracted position.

[0049] Figure 14 for Figure 13 The structure shown omits the cover plate to reveal a side view of the first link and the second link.

[0050] Figure 15 The figure is a schematic diagram showing the positional relationship between the first connecting rod, the second connecting rod and the seat cushion wall panel of the zero-gravity car seat of the present invention when the seat cushion wall panel is in the high-return position.

[0051] Figure 16 It is a schematic diagram of the three-dimensional structure of the zero-gravity car seat of the present invention, in which the front end of the seat cushion wall panel is in a raised state and the rear end is in a high position, that is, a high-position zero-pressure position.

[0052] Figure 17 for Figure 16 The structure shown omits the cover plate to reveal a side view of the first link and the second link.

[0053] Figure 18 The figure is a schematic diagram showing the positional relationship between the first connecting rod, the second connecting rod and the seat cushion wall panel of the zero-gravity car seat of the present invention when the seat cushion wall panel is in the high zero-pressure position.

[0054] Figure 19 This is a schematic diagram of the three-dimensional structure of the zero-gravity car seat of the present invention without the reinforcement rod.

[0055] Figure 20 for Figure 19 A schematic diagram of the three-dimensional structure from another perspective of the structure shown.

[0056] Description of reference numerals:

[0057] 102—rear connecting rod; 104—second connecting rod; 107—slide rail assembly; 108—front tube; 109—seat cushion wall panel; 110—seat cushion assembly;

[0058] 201—first connecting rod; 202—driving screw rod; 203—driving slider; 204—reinforcement rod; 205—limiting bolt; 206—driving motor; 207—flexible shaft; 208—gear box; 209—waist-shaped groove. DETAILED DESCRIPTION

[0059] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0060] See Figure 1 This utility model provides a zero-gravity car seat, aiming to provide a drive mechanism that is safe and stable in load bearing. This drive mechanism comprises a drive motor, a drive screw, and a drive slider. The load applied to the seat acts on the drive screw in the form of tension via the drive slider, which helps stabilize the drive screw and prevents instability. The following describes the zero-gravity car seat in conjunction with the accompanying drawings.

[0061] See Figure 1 , showing a three-dimensional structural diagram of the seat cushion assembly and the slide rail assembly of the zero-gravity car seat of the present invention. Figure 2 , showing Figure 1 The exploded structure diagram of the front structure of the seat cushion assembly in the structure shown is as follows. Figure 1 and Figure 2 , the zero-gravity car seat of the present invention is described.

[0062] like Figure 1 and Figure 2 As shown, the zero-gravity car seat of the present invention includes a seat cushion assembly 110 and a slide rail assembly 107. The seat cushion assembly 110 is mounted on the vehicle floor via the slide rail assembly 107. The slide rail assembly 107 provides a sliding adjustment function for the seat cushion assembly 110, enabling the seat's fore-aft position to be adjusted. The zero-gravity car seat of the present invention also includes a backrest assembly (not shown), which is hinged to the rear end of the seat cushion assembly 110 and provides a support function for the occupant.

[0063] The seat cushion assembly 110 of the zero-gravity car seat of the present invention includes a seat cushion wall panel 109, and the zero-gravity car seat also includes a first connecting rod 201, a second connecting rod 104, a driving screw 202, a driving motor 206 and a driving slider 203, wherein the driving screw 202, the driving motor 206 and the driving slider 203 constitute a driving mechanism for driving the first connecting rod 201 to rotate and adjust. Figure 3 and Figure 4As shown, the first end of the first connecting rod 201 is hinged to the front portion of the seat cushion wall panel 109, and the second end of the first connecting rod 201 can be rotated and adjusted around the hinge of the first end. The first end of the second connecting rod 104 is hinged to the first connecting rod 201, and the second end of the second connecting rod 104 is hinged to the slide rail assembly 107. In this way, when the first connecting rod 201 is rotated and adjusted, the first end of the second connecting rod 104 can be rotated and adjusted around the hinge of its second end. One end of the drive screw 202 is hinged to the seat cushion wall panel 109; the drive motor 206 is driven and connected to the drive screw 202, which can drive the drive screw 202 to rotate. The drive slider 203 is screwed to the drive screw 202 and is hinged to the second end of the first connecting rod 201.

[0064] When the driving motor 206 drives the driving screw 202 to rotate, the driving slider 203 can move along the driving screw 202, and then drive the slider 203 to move with the second end of the first connecting rod 201, so that the second end of the first connecting rod 201 is rotated and adjusted around the hinge of the first end. The rotation of the first connecting rod 201 drives the second connecting rod 104 to rotate and adjust together, thereby realizing the lifting adjustment or lowering adjustment of the front end of the seat cushion wall panel 109.

[0065] like Figure 5 As shown, the front end of the seat cushion wall panel of the zero-gravity car seat is in a retracted state, as shown in FIG. Figure 6 As shown, the front end of the seat cushion wall panel of the zero-gravity car seat is in a raised state. The front end of the seat cushion wall panel of the zero-gravity car seat can be adjusted to the position of Figure 5 The front end of the seat cushion wall of the zero-gravity car seat can also be adjusted to the falling state shown. Figure 6 The lifted state is shown.

[0066] In a specific embodiment of the present invention, Figures 1 to 4 、 Figure 19 and Figure 20 As shown, the drive screw 202 is disposed inside the seat cushion panel 109, with the other end of the drive screw 202 extending diagonally downward toward the interior of the zero-gravity car seat. Specifically, one end of the drive screw 202 is hinged to the front of the seat cushion panel 109, while the other end of the drive screw 202 extends diagonally downward toward the rear or center of the seat cushion panel 109, effectively storing the drive screw 202 inward within the zero-gravity car seat. This arrangement of the drive screw 202 facilitates utilization of the front space of the seat cushion assembly 110, such as for providing a leg rest mechanism.

[0067] Furthermore, two seat cushion panels 109 are provided, the two seat cushion panels 109 being arranged opposite each other, and the front portion of the two seat cushion panels 109 is supported and connected to the front tube 108; one end of the drive screw 202 is hingedly connected to the front tube 108, and the drive screw 202 is connected to the seat cushion panel 109 through the front tube 108. Preferably, a mounting bracket is provided on the front tube 108, and one end of the drive screw 202 is rotatably connected to the mounting bracket.

[0068] Furthermore, a gear box 208 is provided at one end of the driving screw 202, and the gear box 208 is hinged to the mounting bracket of the front tube 108. The driving screw 202 can be rotated around its own axis and is provided on the gear box 208. Gears are provided inside the gear box 208, and the motor shaft of the driving motor 206 is connected to the gear box 208. The motor shaft of the driving motor 206 drives the driving screw 202 to rotate through the gears inside the gear box 208.

[0069] Furthermore, if Figure 1 and Figure 2 As shown, there is one drive motor 206 and two drive screws 202. One drive motor 206 is connected to the two drive screws 202 via a flexible shaft 207, thereby driving the two drive screws 202 to rotate. The flexible shaft 207 drives the drive screws 202, which allows for flexible placement of the drive motor 206. The drive motor 206 is preferably located at the front of the seat cushion assembly 110.

[0070] like Figures 1 to 4 As shown, two drive sliders 203 are also provided, each screwed onto a corresponding drive screw 202; a reinforcing rod 204 is connected between the two drive sliders 203. The reinforcing rod 204 supports and connects between the two drive sliders 203. The provision of the reinforcing rod 204 improves the structural rigidity of the two drive sliders. The reinforcing rod 204 is connected with the drive sliders 203, the drive screw 202, the gear box 208, and the front tube 108 to form a square structure. The movement and adjustment of the drive slider 203 along the drive screw 202 only changes the size of the square structure. This square structure improves the structural rigidity and stability of the entire drive mechanism.

[0071] Furthermore, the reinforcing rod 204 is hinged to the second end of the first connecting rod 201 through the driving slider 203, which is equivalent to being supported on the inner side of the two first connecting rods 201, providing lateral support for the first connecting rod 201, and improving the structural stability and structural rigidity of the first connecting rod.

[0072] There are also two first connecting rods 201 and two second connecting rods 202 , which are arranged corresponding to the seat cushion wall panels 109 .

[0073] Of course, the reinforcing rod may not be provided between the two driving sliders 203. Figure 19 and Figure 20 The embodiment shown.

[0074] In a specific embodiment of the present invention, Figure 3 and Figure 4 As shown, a waist-shaped groove 209 is provided on the first connecting rod 201, and a limiting bolt 205 is provided on the cushion wall plate 109 corresponding to the waist-shaped groove 209, and the limiting bolt 205 passes through the waist-shaped groove 209; Figure 8 As shown, when the front end of the seat cushion wall panel of the zero-gravity car seat is in a retracted state, the limiting bolt 205 abuts against the lower end of the waist-shaped groove 209 .

[0075] By setting the waist-shaped groove 209 and the limiting bolt 205, the rotation adjustment of the first connecting rod 201 can be guided by a limiting guide, thereby improving the stability of the first connecting rod 201 during the rotation adjustment process. When the first connecting rod 201 is rotated and adjusted, the corresponding part of the limiting bolt 205 can move in the waist-shaped groove 209.

[0076] Furthermore, the limiting bolt 205 is a stepped bolt, the head of which is in contact with the corresponding side surface of the first connecting rod 201. The front section of the screw portion of the stepped bolt 205 is connected to the seat cushion wall plate 109, and the rear section of the screw portion is located in the waist-shaped groove 209. The front section of the screw portion of the stepped bolt 205 is provided with threads for screwing into the threaded hole on the seat cushion wall plate 109 or for screwing into the nut fixed to the seat cushion wall plate 109. The rear section of the screw portion of the stepped bolt 205 is a smooth rod, that is, it is not provided with threads, and can cooperate with the waist-shaped groove 209 to facilitate movement within the waist-shaped groove 209. The head of the stepped bolt is in contact with the side surface of the first connecting rod 201, which can provide lateral support for the first connecting rod 201, thereby improving the structural stability and structural rigidity of the first connecting rod.

[0077] In a specific embodiment of the present invention, Figure 3 and Figure 8 As shown, the second connecting rod 104 includes a first rod portion and a second rod portion formed in one piece, and an angle is formed at the connection between the first rod portion and the second rod portion. The angle formed is greater than 90° and less than 180°. When the seat cushion wall panel of the zero-gravity car seat is in the design position (i.e. Figure 7 and Figure 8When the seat is in the position shown, the connection between the first and second rods is located below the stop bolt 205. Stop bolt 205 is now located at the lower end of waist-shaped groove 209. If the zero-gravity car seat encounters an unexpected impact, such as a collision, the second connecting rod 104 provides support for stop bolt 205, preventing the front end of the seat cushion panel from accidentally sinking. Furthermore, the angle formed at the connection between the first and second rods provides a clearing function, allowing it to avoid stop bolt 205 and prevent any obstruction to its movement.

[0078] Further, if Figure 8 and Figure 11 As shown, the first end of the second link 104 is hingedly connected to the middle part of the first link 201, so that the rotation adjustment of the first link 201 drives the second link 104 to rotate and adjust together, thereby lifting the front end of the seat cushion wall panel of the zero-gravity car seat to achieve zero-pressure adjustment of the seat or lowering the front end of the seat cushion wall panel of the zero-gravity car seat to achieve resetting of the seat.

[0079] like Figure 5 and Figure 6 、 Figure 9 and Figure 12 as well as Figure 15 and Figure 18 As shown, when the driving screw 202 drives the first connecting rod 201 to rotate and adjust, the angle β between the setting direction of the first connecting rod 201 and the setting direction of the seat cushion wall panel 109 can be increased or decreased, thereby adjusting the front end of the zero-gravity car seat to be in a raised state or a lowered state. Specifically, when the angle β between the setting direction of the first connecting rod 201 and the setting direction of the seat cushion wall panel 109 is increased, the front end of the seat cushion wall panel of the zero-gravity car seat is lifted upward; when the angle β between the setting direction of the first connecting rod 201 and the setting direction of the seat cushion wall panel 109 is decreased, the front end of the seat cushion wall panel of the zero-gravity car seat is lowered downward.

[0080] In a specific embodiment of the present invention, the rear portion of the seat cushion wall panel 109 can be directly connected to the slide rail assembly 107, and can also be hinged to the slide rail assembly 107 through a rear connecting rod. If a rear connecting rod is provided, the height of the seat cushion can be adjusted.

[0081] like Figures 7 to 12 As shown, the front end of the seat cushion wall panel of the zero-gravity car seat of the present invention is in the designed position and raised state, and the rear part of the seat cushion assembly is in a low position. In this embodiment, the rear part of the seat cushion wall panel 109 of the seat cushion assembly can be hingedly connected to the slide rail assembly 107, and can also be hingedly connected to the slide rail assembly 107 through a rear connecting rod. At this time, the rear connecting rod is in a retracted state. Figure 10 and Figure 11 The seat is shown in the low, zero-pressure position.

[0082] like Figures 13 to 15 As shown, in this embodiment, the rear portion of the seat cushion panel 109 is hingedly connected to the slide rail assembly 107 via the rear link 102. The rear link 102 rotates to a supporting state, raising the rear portion of the seat cushion panel 109. When the rear link 102 rotates to a high position, it drives the front second link 104 to rotate, and the seat is now in a high-position return position. In this high-position return position, the front end of the seat cushion panel of the zero-gravity car seat can be lifted upward and adjusted to a high-position zero-pressure position, as shown in FIG. Figures 16 to 18 shown.

[0083] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A zero-gravity car seat, comprising a seat cushion wall panel (109) and a slide rail assembly (107), characterized in that: The zero-gravity car seat further comprises: a first connecting rod (201), wherein a first end of the first connecting rod (201) is hinged to the front portion of the seat cushion wall panel (109); a second connecting rod (104), wherein a first end of the second connecting rod (104) is hinged to the first connecting rod (201), and a second end of the second connecting rod (104) is hinged to the slide rail assembly (107); A driving screw rod (202), one end of which is hinged to the seat cushion wall plate (109); a driving motor (206), the driving motor (206) being drivingly connected to the driving screw (202), and the driving motor (206) being capable of driving the driving screw (202) to rotate; A driving slider (203), wherein the driving slider (203) is screwed onto the driving screw rod (202), and the driving slider (203) is hinged to the second end of the first connecting rod (201); When the driving motor (206) drives the driving screw (202) to rotate, the driving slider (203) can move along the driving screw (202), thereby driving the first connecting rod (201) and the second connecting rod (104) to rotate and adjust, thereby achieving the lifting adjustment or the falling adjustment of the front end of the seat cushion wall panel (109).

2. The zero-gravity car seat according to claim 1, wherein: The driving screw rod (202) is arranged on the inner side of the cushion wall plate (109), and the other end of the driving screw rod (202) is extended toward the interior of the zero-gravity car seat in a downwardly inclined state.

3. The zero-gravity car seat according to claim 1, wherein: When the driving screw rod (202) drives the first connecting rod (201) to rotate and adjust, the angle between the setting direction of the first connecting rod (201) and the setting direction of the seat cushion wall plate (109) can be increased or decreased, thereby adjusting the front end of the seat cushion wall plate (109) to be in a raised state or a lowered state.

4. The zero-gravity car seat according to claim 1, wherein: There is one driving motor (206) and two driving screw rods (202); The driving motor (206) is connected to the two driving screw rods (202) via a flexible shaft (207), thereby driving the two driving screw rods (202) to rotate.

5. The zero-gravity car seat according to claim 4, wherein: There are also two driving sliders (203), which are respectively screwed onto corresponding driving screw rods (202); A reinforcing rod (204) is connected between the two driving sliders (203).

6. The zero-gravity car seat according to claim 1, wherein: The first connecting rod (201) is provided with a waist-shaped groove (209); A limiting bolt (205) is provided on the cushion wall plate (109) corresponding to the waist-shaped groove (209), and the limiting bolt (205) passes through the waist-shaped groove (209); When the front end of the cushion wall plate (109) is in a retracted state, the limiting bolt (205) abuts against the lower end of the waist-shaped groove (209).

7. The zero-gravity car seat according to claim 6, wherein: The limiting bolt (205) is a stepped bolt, and the head of the stepped bolt is in contact with the corresponding side surface of the first connecting rod (201).

8. The zero-gravity car seat according to claim 6, wherein: The second connecting rod (104) comprises a first rod portion and a second rod portion formed integrally; An angle is formed at a connection between the first rod portion and the second rod portion, and the angle is greater than 90° and less than 180°; When the zero-gravity car seat is in a designed position, the connection between the first rod portion and the second rod portion is located below the limiting bolt (205).

9. The zero-gravity car seat according to claim 1, wherein: There are two seat cushion wall panels (109), and the front supports of the two seat cushion wall panels (109) are connected to the front pipe (108); One end of the driving screw rod (202) is hinged to the front tube (108).

10. The zero-gravity car seat according to claim 1, wherein: The first end of the second connecting rod (104) is hingedly connected to the middle portion of the first connecting rod (201).

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