Adjustable car seat

Abstract

The utility model relates to an adjustable car seat, comprising a cushion wall panel and a backrest frame installed on a base, wherein the cushion wall panel and the backrest frame are linked to each other and move relative to each other through a locking mechanism; when the locking mechanism is in an unlocked state, the backrest frame can flip backward relative to the cushion wall panel, at which time the cushion wall panel is in a low position and remains stationary; or the cushion wall panel can be lifted from a low position relative to the base while driving the backrest frame to flip forward through a limiting mechanism. The utility model realizes the linkage and relative movement of the cushion wall panel and the backrest frame through a locking mechanism, which can reduce the number of driving components (such as motors) and thus save costs.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an adjustable automobile seat. Background Art

[0002] With the continuous development of the automotive industry and the continuous improvement of intelligence, the comfort requirements of automotive seats by end customers and automobile OEMs are increasing. Under the promotion of new scenarios, zero-gravity seats are mentioned more and more. The goal of "zero-gravity" posture seat adjustment is to meet the support requirements of the three main parts of the occupants' feet, thighs and torso, so that the three parts receive sufficient and appropriate support, disperse the pressure on the back and legs, and relax the muscles of the whole body, so as to achieve the ultimate relaxation state of the occupants.

[0003] In order to meet the tilt angle adjustment range and seat cushion height adjustment range of the zero-gravity seat, the applicant proposed a five-link seat structure (application number: 202110648638.6, invention name: a five-link seat structure), which is provided with a motor and two angle adjusters for adjusting the backrest, two motors and two racks for adjusting the height of the seat cushion, and a motor and two angle adjusters for the front lift adjustment of the seat cushion. This arrangement results in a large number of driving components and a high cost. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide an adjustable car seat to solve the problem that the existing zero-gravity seats are provided with a large number of driving components to meet the adjustment requirements, thereby resulting in high costs.

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

[0006] The utility model provides an adjustable car seat, comprising a seat cushion wall plate and a backrest frame mounted on a base, wherein the seat cushion wall plate and the backrest frame are linked to each other and move relative to each other through a locking mechanism; a limiting mechanism is also provided between the seat cushion wall plate (2) and the backrest frame (1);

[0007] When the locking mechanism is in an unlocked state, the backrest frame can be flipped backward relative to the seat cushion wall panel, at which time the seat cushion wall panel is in a low position and remains stationary; or the seat cushion wall panel can be lifted from a low position relative to the base while driving the backrest frame to flip forward through the limiting mechanism.

[0008] A further improvement of the adjustable car seat of the utility model is that when the locking mechanism is in the unlocked state, the backrest frame can be flipped backward relative to the seat cushion wall panel by manpower or the gravity of the backrest frame; and the seat cushion wall panel can be lifted from a low position relative to the base by electricity while driving the backrest frame to flip forward through the limiting mechanism.

[0009] A further improvement of the adjustable car seat of the utility model is that the adjustable car seat includes a pair of rear connecting rods, one end of the rear connecting rods is rotatably connected to the rear part of the seat cushion wall panel, and the other end of the rear connecting rods is rotatably connected to the base, and the backrest frame includes a pair of lower brackets. When the locking mechanism is in an unlocked state, the lower brackets can be flipped backwards relative to the rear connecting rods, and the rear connecting rods can drive the lower brackets to flip forward synchronously.

[0010] A further improvement of the adjustable automobile seat of the utility model lies in that the pair of lower brackets and the pair of rear connecting rods are arranged coaxially.

[0011] A further improvement of the adjustable car seat of the utility model is that the adjustable car seat further comprises a pair of angle adjusters, which are arranged between the lower bracket and the rear connecting rod and are connected through a synchronous rod.

[0012] A further improvement of the adjustable automobile seat of the utility model is that the locking mechanism comprises a locking tongue rotatably arranged on the lower bracket, and a blocking protrusion matched with the locking tongue.

[0013] A further improvement of the adjustable automobile seat of the utility model is that when the locking mechanism is in a locked state, the blocking protrusion is blocked by the locking tongue to limit the backrest frame from flipping backward relative to the seat cushion wall plate.

[0014] A further improvement of the adjustable car seat of the utility model is that a rear stop block is provided on the backrest frame corresponding to the stop convex, and the rear stop block is arranged so that when the backrest frame is driven to flip forward, the rear stop block can be blocked by the stop convex to limit the forward flipping angle of the backrest frame.

[0015] A further improvement of the adjustable car seat of the utility model is that the adjustable car seat also includes a linkage ring arranged between the angle adjuster and the lower bracket, one side of the linkage ring passes through the lower bracket and is fixedly connected to the seat cushion wall plate, and the other side of the linkage ring is fixedly connected to the fixed plate of the angle adjuster, and the stop convex is arranged on the linkage ring.

[0016] A further improvement of the adjustable automobile seat of the utility model is that one side of the rear connecting rod is fixedly connected to the rotating disk of the angle adjuster, and the other side of the rear connecting rod is fixedly connected to the rear tube.

[0017] A further improvement of the adjustable car seat of the utility model is that the limiting mechanism includes an arcuate groove arranged on one of the rear connecting rod and the lower bracket, and a limiting pin arranged on the other of the rear connecting rod and the lower bracket, and the limiting pin can move in the arcuate groove so that when the locking mechanism is in an unlocked state, the backrest frame flips backward relative to the seat cushion wall panel, or when the rear connecting rod flips forward, the limiting pin drives the lower bracket to rotate forward synchronously.

[0018] A further improvement of the adjustable automobile seat of the utility model is that the adjustable automobile seat further comprises an unlocking lever for driving the lock mechanism to switch between an unlocking state and a locking state.

[0019] A further improvement of the adjustable automobile seat of the utility model lies in that the unlocking rod is rotatably arranged on the lower bracket.

[0020] A further improvement of the adjustable automobile seat of the utility model is that the unlocking rod can push the locking tongue to rotate so that the locking tongue is away from the blocking protrusion, thereby allowing the backrest frame to flip backward relative to the seat cushion wall plate.

[0021] The beneficial effects of the adjustable car seat of the utility model are:

[0022] The adjustable automobile seat of the utility model realizes the mutual linkage and relative movement of the cushion wall plate and the backrest frame through the locking mechanism, which can reduce the number of driving components (such as motors) and thus save costs.

[0023] The adjustable automobile seat of the utility model reduces the number of sensors accordingly by providing the physical limiting features such as the stopper convex, the rear stopper, the arc groove and the limit pin, thereby further saving costs.

[0024] The adjustable automobile seat of the utility model can be designed with a lightweight frame, reduce the number of components (such as motors and sensors), reduce the weight of the seat, and improve the competitiveness of the product.

[0025] The adjustable automobile seat of the utility model has the advantage of saving space because the angle adjuster is coaxially arranged through the synchronous rod, and can also optimize the rear-row foot space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a schematic structural diagram of an adjustable automobile seat.

[0027] Figure 2 The utility model is a schematic diagram of the structure of the backrest frame part of the adjustable automobile seat.

[0028] Figure 3 for Figure 1Exploded structural diagram of the structure shown.

[0029] Figure 4 for Figure 2 Exploded structural diagram of the structure shown.

[0030] Figures 5 to 8 It is a structural schematic diagram of the adjustable automobile seat of the utility model being adjusted from an initial position to a first resting posture, a zero-pressure posture and a second resting posture in a parking mode.

[0031] Figures 9 to 11 It is a structural schematic diagram of the lock mechanism of the adjustable automobile seat of the utility model during the process of adjusting from the initial position to the zero-pressure posture in the parking mode.

[0032] Figure 12 to Figure 14 It is a structural schematic diagram of a seat cushion wall panel, a backrest frame and a locking mechanism during the process of adjusting the adjustable automobile seat of the utility model from a zero-pressure posture to a second resting posture in a parking mode.

[0033] Figures 15 to 17 It is a structural schematic diagram of the adjustable automobile seat of the utility model being adjusted from an initial position to a raised posture and a second resting posture in a driving mode.

[0034] Figures 18 to 20 It is a structural schematic diagram of a seat cushion wall panel and a backrest frame of the adjustable automobile seat of the utility model during adjustment from an initial position to a raised posture and a second resting posture in a driving mode.

[0035] Figure 21 to Figure 23 The utility model is an adjustment flow chart of the adjustable car seat.

[0036] Description of reference numerals:

[0037] 1—backrest frame; 2—seat cushion wall panel; 3—drive motor; 4—slide rail; 41—rear connecting seat; 5—front lifting bracket; 6—first angle adjuster; 7—front connecting rod; 8—front lifting connecting rod; 9—front tube; 10—first synchronization rod; 11—upper frame; 12—torsion spring; 13—unlocking rod; 14—lower bracket; 141—through opening; 15—synchronization rod; 16—lock tongue mounting ring; 17—rear stopper; 18—linkage ring; 181—stop cam; 19—angle adjuster; 20—rear connecting rod; 201—arc groove; 202—pin hole; 21—lock tongue; 22—limit pin; 23—rear tube; 24—front lifting motor. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] See also Figure 1The utility model provides an adjustable car seat, which realizes the linkage and relative movement of the cushion wall plate and the backrest frame through a locking mechanism, and realizes two adjustment functions with one motor, namely, the lifting of the cushion wall plate and the rotation of the backrest frame, which can reduce the number of driving components, save costs, and reduce the weight of the seat. The structure of the adjustable car seat of the utility model is described below in conjunction with the accompanying drawings.

[0040] See also Figure 1 , showing a schematic diagram of the structure of the adjustable car seat of the utility model. Figure 3 , showing the utility model Figure 1 Exploded structural diagram of the structure shown. Figure 4 , showing the utility model Figure 2 The exploded structure diagram of the structure shown is shown below. Figure 1 , Figure 3 and Figure 4 , the structure of the adjustable automobile seat of the utility model is described.

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, the adjustable car seat of the utility model comprises a cushion wall plate 2 and a backrest frame 1 mounted on a base, and the cushion wall plate 2 and the backrest frame 1 are linked to each other and move relative to each other through a locking mechanism.

[0042] Furthermore, the locking mechanism includes a locking tongue 21 rotatably arranged on the backrest frame 1 and a blocking protrusion 181 connected to the seat cushion wall panel 2, the blocking protrusion 181 cooperates with the locking tongue 21, and the locking tongue 21 can block the blocking protrusion 181 to realize the locking state of the locking mechanism. In the locked state, the backrest frame 1 and the seat cushion wall panel 2 can be linked to each other; by rotating the locking tongue 21 so that the locking tongue 21 is away from the blocking protrusion 181, the unlocking state of the locking mechanism is realized. In the unlocking state, the backrest frame 1 and the seat cushion wall panel 2 can move relative to each other.

[0043] In this way, the setting of the locking mechanism can reduce the number of driving components of the seat cushion wall plate 2 and the backrest frame 1. There is no need to set driving components for the seat cushion wall plate 2 and the backrest frame 1 respectively, which can save costs.

[0044] In a specific embodiment of the present invention, Figure 1 and Figure 4 As shown, the adjustable car seat includes a pair of rear connecting rods 20, one end of which is rotatably connected to the rear portion of the cushion wall panel 2, and the other end of which is rotatably connected to the base. The rear connecting rod 20 can be rotated and adjusted around the rotation connection with the base, so that the rear portion of the cushion wall panel 2 can be lifted up from a low position or dropped from a high position to a low position. Figure 12 to Figure 14As shown, it shows the process that the rotation adjustment of the rear connecting rod 20 causes the rear part of the seat cushion wall panel 2 to be lifted upward from a low position to a high position.

[0045] Furthermore, if Figure 2 As shown, the backrest frame 1 includes a pair of lower brackets 14, which are arranged between the rear connecting rod 20 of the seat cushion wall panel 2, and a through hole 141 is arranged at the lower part of the lower bracket 14, and the seat cushion wall panel 2 and the rear connecting rod 20 are rotatably connected through the through hole 141. In this way, when the lock mechanism is in the unlocked state, the lower bracket 14 can move relative to the seat cushion wall panel 2 and the rear connecting rod 20, including flipping backward and flipping forward. Preferably, the backrest frame 1 or the lower bracket 14 can be flipped backward relative to the seat cushion wall panel 2 and the rear connecting rod 20 by manpower (such as pushing the backrest frame backward by hand or leaning back hard) or the gravity of the backrest frame 1, and can also be flipped forward relative to the seat cushion wall panel 2 and the rear connecting rod 20 by manpower.

[0046] Furthermore, a limiting mechanism is provided between the lower bracket 14 and the rear connecting rod 20, and the limiting mechanism limits the angle at which the lower bracket 14 can flip backward relative to the rear connecting rod 20. When the locking mechanism is in the unlocked state, after the lower bracket 14 flips backward relative to the rear connecting rod 20, the limiting mechanism produces a limiting effect, so that the lower bracket 14 can no longer continue to flip backward relative to the rear connecting rod 20. At the same time, under the action of the limiting mechanism, when the rear connecting rod 20 is rotated and adjusted around the rotating connection with the base, the rear part of the seat cushion wall plate 2 is driven to lift from a low position relative to the base. At this time, due to the limiting effect of the limiting mechanism, the seat cushion wall plate 2 and the rear connecting rod 20 can drive the backrest frame 1 and the lower bracket 14 to flip forward. In this way, the forward flipping of the backrest frame 1 is driven by the lifting of the seat cushion wall plate 2, avoiding the forward flipping and resetting of the backrest frame 1 by manpower.

[0047] like Figure 7 As shown, the adjustable car seat of the utility model realizes that when the lock mechanism is in the unlocked state, the backrest frame 1 can be flipped backward relative to the seat cushion wall plate 2, and at this time, the seat cushion wall plate 2 is in a low position and remains stationary; Figure 12 to Figure 14 As shown, the seat cushion wall plate 2 can be lifted from a low position relative to the base and drive the backrest frame 1 to flip forward.

[0048] In a preferred embodiment, if Figure 2 and Figure 4 As shown, the limiting mechanism includes an arcuate groove 201 and a limiting pin 22 , wherein the arcuate groove 201 is provided on the rear connecting rod 20 , and the limiting pin 22 is provided on the lower bracket 14 , and the limiting pin 22 passes through the arcuate groove 201 , and the limiting pin 22 can move in the arcuate groove 201 .

[0049] like Figures 9 to 11As shown, initially, the limit pin 22 is at the lowest end of the arc groove 201. When the lock mechanism is in the unlocked state, the lower bracket 14 can flip backward relative to the seat cushion wall plate 2 and the rear connecting rod 20. At this time, the limit pin 22 moves upward in the arc groove 201. When the limit pin 22 moves to the highest end of the arc groove 201, the angle at which the lower bracket 14 flips backward is limited. Fig.12 and Fig.13 As shown, when the locking mechanism is in the locked state, the rear connecting rod 20 rotates counterclockwise around the rotating connection with the base, the rear part of the cushion wall panel 2 is lifted upward from a low position, the limit pin 22 and the uppermost groove wall of the arc-shaped groove 201 abut against each other, thereby driving the lower bracket 14 to flip forward synchronously.

[0050] It is conceivable that the arc groove 201 can also be provided on the lower bracket 14, and the limit pin 22 can be provided on the rear connecting rod 20. Initially, the limit pin 22 is at the uppermost end of the arc groove 201. When the lock mechanism is in the unlocked state, the lower bracket 14 can be flipped backward relative to the seat cushion wall plate 2 and the rear connecting rod 20. At this time, the limit pin 22 moves downward in the arc groove 201. When the limit pin 22 moves to the lowermost end of the arc groove 201, the angle of the lower bracket 14 flipping backward is limited. When the lock mechanism is in the locked state, the rear connecting rod 20 rotates counterclockwise around the rotating connection with the base, and the rear part of the seat cushion wall plate 2 is lifted upward from the low position. The limit pin 22 and the groove wall at the lower end of the arc groove 201 are against each other, thereby driving the lower bracket 14 to flip forward synchronously.

[0051] In another preferred embodiment, the limiting mechanism includes limiting structures such as limiting baffles or limiting protrusions that cooperate with each other. When the locking mechanism is in the unlocked state, the lower bracket 14 flips backward relative to the seat cushion wall panel 2 and the rear connecting rod 20 until the limiting structures such as the limiting baffles or limiting protrusions come into contact, thereby limiting the backward flipping angle of the lower bracket 14. When the rear connecting rod 20 rotates around the rotating connection with the base, the rear part of the seat cushion wall panel 2 is lifted upward from a low position, and the limiting structures such as the limiting baffles or limiting protrusions can drive the lower bracket 14 to flip forward synchronously. Preferably, the limiting structures such as the limiting baffles or limiting protrusions can be set at Figure 2 The upper and lower ends of the arc groove 201 shown can limit the angle of the lower bracket to flip backward and forward, and can also drive the lower bracket 14 to flip forward synchronously when the rear part of the seat cushion wall panel 2 is lifted upward from a low position.

[0052] In a specific embodiment of the present invention, the adjustable car seat of the present invention further comprises a driving assembly connected to the pair of rear connecting rods 20, and the driving assembly is used to drive the rear connecting rods 20 to rotate around the rotating connection with the base, so as to drive the rear part of the seat cushion wall plate 2 to be lifted upward from a low position or dropped from a high position to a low position. In this way, the lifting adjustment of the seat cushion wall plate 2 of the present invention can be achieved by electricity.

[0053] Furthermore, if Figure 3 and Figure 4 As shown, the driving assembly includes a pair of angle adjusters 19, a synchronization rod 15 and a driving motor 3; the angle adjuster 19 is arranged corresponding to the rear connecting rod 20, and the angle adjuster 19 is arranged between the lower bracket 14 and the rear connecting rod 20; the synchronization rod 15 connects a pair of angle adjusters 19, so that the pair of angle adjusters 19 can rotate synchronously; the driving motor 3 is connected to a angle adjuster 9, and is used to drive the angle adjuster 9 to rotate, and then drive another angle adjuster 9 to rotate synchronously through the synchronization rod 15, and the rotation of the angle adjuster 9 drives the rear connecting rod 20 to rotate, so as to realize the lifting adjustment or falling adjustment of the rear part of the seat cushion wall plate 2. Preferably, the driving motor 3 is arranged on the outside of a seat cushion wall plate 2.

[0054] Furthermore, the recliner 19 is connected to the seat cushion wall plate 2 through the through hole 141 on the lower bracket 14, and the fixing plate of the recliner 19 is fixedly connected to one side of the rear connecting rod 20, for example, by welding. The locking tongue 21 of the locking mechanism is rotatably arranged on the lower bracket 14, and the stop convex 181 is arranged on the fixing plate of the recliner 19. Fig. 9 As shown, the locking tongue 21 blocks the blocking protrusion 181, and the locking mechanism is in a locked state. Fig.10 As shown, the lock tongue 21 does not block the blocking protrusion 181 , and the lock mechanism is in an unlocked state at this time, wherein the unlocking can be achieved by rotating the lock tongue 21 to move the lock tongue 21 away from the blocking protrusion 181 .

[0055] Furthermore, if Figure 2 and Figure 4 As shown, the adjustable car seat of the utility model further includes a linkage ring 18, which is arranged between the recliner 18 and the lower bracket 14, and one side of the linkage ring 18 passes through the through hole 141 of the lower bracket 14 and is fixedly connected to the cushion wall plate 2, for example, by welding. The other side of the linkage ring 18 is fixedly connected to the fixing plate of the recliner 19, for example, by welding. After the linkage ring 18 is arranged, the stop convex 181 can be arranged on the linkage ring 18.

[0056] Furthermore, if Figures 2 to 4 As shown, a pair of lower brackets 14 and a pair of rear connecting rods 20 are arranged coaxially; a pair of recliners 19 and a synchronization rod 15 are also arranged coaxially; the lower bracket 14, the rear connecting rod 20 and the recliner 19 are also arranged coaxially. Preferably, the adjustable car seat of the utility model further includes a rear tube 23, which is sleeved on the synchronization rod 15, and the rear tube 23 is placed between the pair of rear connecting rods 20, and the rear tube 23 is fixedly connected to the side of the rear connecting rod 20 away from the recliner 19, for example, by welding.

[0057] Furthermore, if Figure 2 and Figure 4As shown, a rear stopper 17 is provided on the lower bracket 14 of the backrest frame 1 corresponding to the stopper 181. The rear stopper 17 is arranged so that when the backrest frame 1 is driven to flip forward, the rear stopper 17 can be blocked by the stopper 181 to limit the flipping angle of the backrest frame 1. Fig. 9 In the locked state shown in FIG. 1 , the rear stopper 17 and the locking tongue 21 are located on both sides of the stop protrusion 181. After the locking tongue 21 is unlocked, the lower bracket 14 can be flipped backward relative to the seat cushion wall plate 2. Fig. 9 The middle and lower bracket 14 rotates clockwise, and the rear stopper 17 is now away from the stop convex 181, and the state is as follows: Fig.11 As shown, when the cushion wall plate 2 drives the backrest frame 1 to flip forward while being lifted and adjusted, the rear stopper 17 abuts against the stopper protrusion 181 to limit the forward flipping angle of the backrest frame 1.

[0058] In a specific embodiment of the present invention, Figures 1 to 4 As shown, the adjustable car seat of the utility model further includes an unlocking lever 13 for driving the lock mechanism to switch between the unlocking state and the locking state. The unlocking lever 13 can be manually operated to drive the lock mechanism to switch between the unlocking state and the locking state, or it can be electrically operated to drive the lock mechanism to switch between the unlocking state and the locking state.

[0059] Furthermore, the unlocking lever 13 is rotatably disposed on the lower bracket 14. By rotating the unlocking lever 13, the unlocking lever 13 can push the locking tongue 21 to rotate so that the locking tongue 21 is away from the blocking protrusion 181, thereby achieving unlocking, that is, allowing the backrest frame 1 to flip backward relative to the seat cushion wall plate 2. The unlocking lever 13 can also be rotated so that the unlocking lever 13 pushes the locking tongue 21 to rotate until it is in contact with the blocking protrusion 181, thereby achieving locking.

[0060] Furthermore, if Figure 2 , Figure 4 and Fig. 9 As shown, the lock tongue 21 is rotatably mounted on the lower bracket 14 through the lock tongue mounting ring 16, and the lock tongue 21 includes a first branch and a second branch intersecting at a certain angle, wherein the first branch can abut against the blocking protrusion 181, and one end of the unlocking rod 13 is rotatably mounted on the lower bracket 14, and the other end extends between the first branch and the second branch, and the rod body of the unlocking rod 13 is in contact with the second branch, so that when the unlocking rod 13 is rotated, the unlocking rod 13 can push the second branch and thus cause the lock tongue 21 to rotate to achieve unlocking, or the unlocking rod 13 pushes the first branch to cause the lock tongue 21 to rotate to achieve locking.

[0061] Furthermore, a torsion spring 12 is provided at the rotation installation position of the unlocking rod 13. The torsion spring 12 exerts elastic force in a natural state to allow the unlocking rod 13 to push the first branch so that the lock tongue 21 is abutted against the stop protrusion 181 to realize the locked state. When the unlocking rod 13 is rotated to unlock, it is necessary to overcome the elastic force of the torsion spring 12 and allow the lock tongue 21 to rotate away from the stop protrusion 181. When the unlocking force applied to the unlocking rod 13 is removed, the torsion spring 12 can reset the unlocking rod 13, thereby causing the lock tongue 21 to rotate to abut against the stop protrusion 181, thereby realizing the locked state of the lock mechanism.

[0062] In a specific embodiment of the present invention, Figures 1 to 4 As shown, the adjustable car seat of the utility model further includes a pair of front connecting rods 7, one end of the front connecting rod 7 is rotatably connected to the front part of the cushion wall plate 2, and the other end of the front connecting rod 7 is rotatably connected to the base. The front connecting rod 7 can drive the front part of the cushion wall plate 2 to lift upward from a low position or fall downward from a high position, that is, the lifting adjustment and falling adjustment of the front part of the cushion wall plate 2 are realized.

[0063] Further, the base can be a car chassis, and can also be a slide rail 4 fixed on the car chassis. The slide rail 4 is arranged on the car chassis, and the movement and adjustment function of the car seat can be realized through the slide rail.

[0064] Furthermore, the adjustable car seat of the utility model also includes another driving component connected to the front connecting rod 7, and the driving component includes a pair of first angle adjusters 6, a pair of front lifting connecting rods 8, a first synchronization rod 10 and a front lifting motor 24. The fixed plate of the first angle adjuster 6 is connected to the front lifting connecting rod 8, and the other side of the first angle adjuster 6 is connected to the slide rail 4 through the front lifting bracket 5, or the other side of the first angle adjuster 6 can also be connected to the base; the first synchronization rod 18 supports and connects the two first angle adjusters 6 to achieve synchronous rotation of the two first angle adjusters 6, and the front lifting motor 24 is drivingly connected to one first angle adjuster 6, and is used to drive the first angle adjuster 6 to rotate, and then drive the other first angle adjuster 6 to rotate synchronously through the first synchronization rod 10, so as to drive the front lifting connecting rod 8 to rotate. The front part of the front lifting connecting rod 8 is hinged to the front connecting rod 7, such as Fig.19 and Fig. 20 As shown, the rotation of the front lifting link 8 drives the front link 7 upward, thereby lifting and adjusting the front part of the seat cushion wall panel 2 upward.

[0065] The adjustable car seat of the utility model further comprises a front tube 9 , which is supported and connected between two front lifting links 8 . The arrangement of the front tube 9 improves the structural stability of the front lifting links 8 .

[0066] Furthermore, a rear connecting seat 41 is provided at the rear of the slide rail 4, and the rear connecting seat 41 is rotatably connected to the rear connecting rod 20. A pin hole 202 is provided on the rear connecting rod 20, and a pin shaft is passed through the pin hole 202 to realize the rotatable connection of the rear connecting rod 20 to the base.

[0067] The backrest frame 1 of the adjustable car seat of the utility model further comprises an upper frame 11 , the bottom of which is connected to a pair of lower brackets 14 .

[0068] The adjustment function of the adjustable automobile seat of the present invention is described below.

[0069] like Figures 15 to 20 FIG. 1 shows an example of an adjustable vehicle seat being adjusted from an initial position to a raised position and a second resting position in a driving mode. Fig.15 The state shown is the initial position. In the initial position, the height of the seat cushion wall panel is 0 mm, the angle of the seat cushion wall panel is 0°, and the backrest frame is at a certain tilt angle. Fig.16 The state shown is a raised posture. In the raised posture, the height of the seat cushion wall panel is h1, and the angle between the backrest frame and the seat cushion wall panel remains unchanged. Fig.17 The state shown is a second resting posture, in which the height of the seat cushion wall is h1, the angle of the seat cushion wall is a2, the angle of the backrest frame is b3, and the angle between the backrest frame and the seat cushion wall remains unchanged.

[0070] Combine the following Fig.21 The control logic of the adjustable car seat shown in FIG. 1 illustrates the adjustment process of the adjustable car seat. Fig.15 The initial position shown, at this time the user can adjust the seat according to their own needs, the adjustment includes the height adjustment of the seat cushion wall panel and the angle adjustment of the seat cushion wall panel.

[0071] like Fig.18 and Fig.19 As shown, the adjustable car seat from Fig.15 The initial position shown to Fig.16 The lifting posture shown, combined with Figures 1 to 4 , Fig.21 and Fig. 22 As shown, the height adjustment of the cushion wall plate can be made to be in a raised position by the reverse drive of the driving motor 3. Specifically, the driving motor 3 drives the recliner 19 to rotate, and the recliner 19 drives the rear connecting rod 20 to rotate counterclockwise around the axis of the recliner 19 (that is, the axis of the synchronization rod 15) ( Fig.19The end of the rear connecting rod 20 is hinged on the rear connecting seat 41 of the slide rail 4, and the rear connecting rod 20 rotates counterclockwise around the hinge point, so that the seat cushion wall plate 2 is lifted, and the backrest frame 1 is lifted along with the seat cushion wall plate 2, but the backrest frame 1 is not driven to rotate. On the contrary, the height of the seat cushion wall plate can be lowered by the positive drive of the driving motor 3, and the seat cushion wall plate returns to the initial position from the lifted position.

[0072] like Fig.19 and Fig. 20 As shown, from Fig.16 The lift attitude shown is Fig.17 In the second resting posture (i.e., nap posture (high position)), the angle adjustment of the seat cushion wall plate can be increased by the positive drive of the front motor (i.e., the front lifting motor 24). Specifically, the front lifting motor 24 drives the first angle adjuster 6 to rotate, and the first angle adjuster 6 drives the front lifting link 8 to rotate clockwise ( Fig. 20 The front connecting rod 7 is driven to increase the angle of the seat cushion wall 2. On the contrary, by driving the front motor (i.e., the front lifting motor 24) in reverse, the angle of the seat cushion wall can be reduced, and the seat cushion wall returns to the lifting position from the second resting position. Figures 5 to 8 As shown, it is shown that in the parking mode, the adjustable vehicle seat is adjusted from the initial position to the first resting position, the zero pressure position and the second resting position. Figure 5 The state shown is the initial position. In the initial position, the height of the seat cushion wall panel is 0 mm, the angle of the seat cushion wall panel is 0°, and the backrest frame is at a certain tilt angle. Figure 6 The state shown is a first resting posture, in which the seat cushion wall panel height is 0 mm, the seat cushion wall panel angle is a1, and the backrest frame angle is b1. Figure 7 The state shown is a zero-pressure posture, in which the seat cushion wall panel height is 0 mm, the seat cushion wall panel angle is a1, and the backrest frame angle is b2. Angle b2 is greater than angle b1 because the backrest frame is rotated backward relative to the seat cushion wall panel. Figure 8 The state shown is a second resting posture, in which the seat cushion wall panel height is h1, the seat cushion wall panel angle is a2, angle a2 is smaller than angle a1, and the backrest frame angle is b3, angle b3 is smaller than angle b1.

[0073] from Figure 5 The initial position shown to Figure 6 The first resting posture shown, combined with Figure 21 to Figure 23As shown, the angle adjustment of the cushion wall panel can be increased by the forward drive of the front motor (i.e., the front lifting motor 24). Specifically, the front lifting motor 24 drives the first angle adjuster 6 to rotate, and the first angle adjuster 6 drives the front lifting link 8 to rotate clockwise, thereby driving the front link 7 to change the angle of the cushion wall panel 2. At this time, since the cushion wall panel 2 has not been lifted, the first resting posture can be called a nap posture (low position). Conversely, the angle of the cushion wall panel can be reduced by the reverse drive of the front motor (i.e., the front lifting motor 24), and the cushion wall panel returns to the initial posture from the first resting posture.

[0074] like Figures 9 to 11 As shown, from Figure 6 The first resting position shown is Figure 7 The zero-pressure posture shown can be adjusted by the unlocking state of the locking mechanism and the backward flipping of the backrest frame to increase the angle of the backrest frame. Specifically, the unlocking rod 13 is rotated clockwise, the locking tongue 21 is away from the blocking protrusion 181, the locking mechanism is in the unlocking state, and the backrest frame 1 is flipped backward relative to the seat cushion wall panel 2 by external force (human power or gravity of the backrest frame), and the limit pin 22 moves to the uppermost end in the arc groove 201, thereby limiting the flipping angle of the backrest frame 1.

[0075] like Figure 12 to Figure 14 As shown, from Figure 7 The zero pressure attitude shown is Figure 8 In the second resting posture shown, the rear end motor (i.e., the drive motor 3) is driven in reverse to raise the cushion wall plate, and the backrest frame rotates in conjunction. Specifically, the drive motor 3 drives the recliner 19 to rotate, and the recliner 19 drives the rear connecting rod 20 to rotate counterclockwise around the axis of the recliner 19 (i.e., the axis of the synchronization rod 15). The hinge point at the lower end of the rear connecting rod 20 is set on the slide rail 4. The rear connecting rod 20 rotates counterclockwise around the hinge point at the lower end, and the backrest frame 1 The limit pin 22 of the lower bracket 14 is pushed by the wall of the arc groove 201 on the rear connecting rod 20, so that the lower bracket 14 rotates counterclockwise around the axis of the angle adjuster 19. The counterclockwise rotation of the rear connecting rod 20 and the lower bracket 14 causes the locking tongue 21 and the blocking protrusion 181 to move away from each other. The rotation angle of the lower bracket 14 is limited by the rear block 17. When the rear block 17 contacts the blocking protrusion 181, the lower bracket 14 rotates to the right position. After reaching the second resting posture, the unlocking lever 13 can rotate counterclockwise (such as Fig.14 The unlocking lever 13 can rotate counterclockwise under the action of the torsion spring or manually or electrically, and the locking tongue 21 rotates clockwise and falls in front of the stop convex 181, and the lock mechanism is in a locked state.

[0076] like Fig. 22As shown, the adjustable car seat can also be adjusted from a nap posture (high position), also known as the second resting posture, to a nap posture (low position), also known as the first resting posture. The height of the seat cushion wall panel can be adjusted by forward driving of the rear end motor (also known as the drive motor 3), so that the seat cushion wall panel is in the nap posture (low position). Then, the angle of the seat cushion wall panel can be adjusted by reverse driving of the front end motor (also known as the front lifting motor 24), so that the seat cushion wall panel is adjusted to the initial position.

[0077] like Fig.23 As shown, the adjustable car seat can also be adjusted from the initial position to a nap posture (high position), i.e., the second resting posture. Specifically, the height of the seat cushion wall panel is raised and the angle of the seat cushion wall panel is increased by the reverse driving of the rear motor (i.e., the drive motor 3) and the forward driving of the front motor (i.e., the front lifting motor 24). Conversely, the height of the seat cushion wall panel is lowered and the angle of the seat cushion wall panel is reduced by the forward driving of the rear motor (i.e., the drive motor 3) and the reverse driving of the front motor (i.e., the front lifting motor 24), so that the adjustable car seat can be adjusted from the second resting posture to the initial position.

[0078] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. An adjustable car seat, comprising a seat cushion wall plate (2) and a backrest frame (1) mounted on a base, characterized in that: The seat cushion wall plate (2) and the backrest frame (1) are linked to each other and move relative to each other through a locking mechanism; a limiting mechanism is also provided between the seat cushion wall plate (2) and the backrest frame (1); When the locking mechanism is in an unlocked state, the backrest frame (1) can be flipped backward relative to the seat cushion wall panel (2), at which time the seat cushion wall panel (2) is in a low position and remains stationary; or the seat cushion wall panel (2) can be lifted from the low position relative to the base while driving the backrest frame (1) to flip forward through the limiting mechanism.

2. The adjustable car seat according to claim 1, characterized in that: When the locking mechanism is in an unlocked state, the backrest frame (1) can be flipped backward relative to the seat cushion wall panel (2) by human power or the gravity of the backrest frame (1); and the seat cushion wall panel (2) can be lifted from a low position relative to the base by electricity while driving the backrest frame (1) to flip forward through the limiting mechanism.

3. The adjustable car seat according to claim 1, characterized in that: The adjustable car seat comprises a pair of rear connecting rods (20), one end of the rear connecting rods (20) is rotatably connected to the rear part of the seat cushion wall panel (2), and the other end of the rear connecting rods (20) is rotatably connected to the base. The backrest frame (1) comprises a pair of lower brackets (14). When the locking mechanism is in an unlocked state, the lower brackets (14) can be flipped backwards relative to the rear connecting rods (20), and the rear connecting rods (20) can drive the lower brackets (14) to flip forward synchronously.

4. The adjustable car seat according to claim 3, characterized in that: The pair of lower brackets (14) are coaxially arranged with the pair of rear connecting rods (20).

5. The adjustable car seat according to claim 3, characterized in that: The adjustable car seat further comprises a pair of angle adjusters (19), which are arranged between the lower bracket (14) and the rear connecting rod (20) and connected via a synchronization rod (15).

6. The adjustable car seat according to claim 5, characterized in that: The locking mechanism comprises a locking tongue (21) rotatably arranged on the lower bracket (14), and a blocking protrusion (181) cooperating with the locking tongue (21).

7. The adjustable car seat according to claim 6, characterized in that: When the locking mechanism is in a locked state, the blocking protrusion (181) is blocked by the locking tongue (21) to limit the backrest frame (1) from flipping backward relative to the seat cushion wall plate (2).

8. The adjustable vehicle seat according to claim 6, characterized in that: A rear stopper (17) is provided on the backrest frame (1) corresponding to the stopper protrusion (181); the rear stopper (17) is arranged so that when the backrest frame (1) is driven to flip forward, the rear stopper (17) can be blocked by the stopper protrusion (181) to limit the forward flipping angle of the backrest frame (1).

9. The adjustable vehicle seat according to claim 6, characterized in that: The adjustable automobile seat further comprises a linkage ring (18) arranged between the angle adjuster (19) and the lower bracket (14); one side of the linkage ring (18) passes through the lower bracket (14) and is fixedly connected to the seat cushion wall plate (2); the other side of the linkage ring (18) is fixedly connected to a fixing plate of the angle adjuster (19); and the stop protrusion (181) is arranged on the linkage ring (18).

10. The adjustable vehicle seat according to claim 9, characterized in that: One side of the rear connecting rod (20) is fixedly connected to the rotating disk of the angle adjuster (19), and the other side of the rear connecting rod (20) is fixedly connected to the rear tube (23).

11. The adjustable vehicle seat according to claim 6, characterized in that: The limiting mechanism comprises an arcuate groove (201) arranged on one of the rear connecting rod (20) and the lower bracket (14), and a limiting pin (22) arranged on the other of the rear connecting rod (20) and the lower bracket (14); the limiting pin (22) can move in the arcuate groove (201) so that when the locking mechanism is in an unlocked state, the backrest frame (1) flips backward relative to the seat cushion wall panel (2), or when the rear connecting rod (20) flips forward, the limiting pin (22) drives the lower bracket (14) to rotate forward synchronously.

12. The adjustable vehicle seat according to claim 11, characterized in that: The adjustable car seat also includes an unlocking rod (13) for driving the lock mechanism to switch between an unlocking state and a locking state.

13. The adjustable vehicle seat according to claim 12, wherein: The unlocking lever (13) is rotatably arranged on the lower bracket (14).

14. The adjustable vehicle seat according to claim 12, wherein: The unlocking rod (13) can push the locking tongue (21) to rotate so that the locking tongue (21) is away from the blocking protrusion (181), thereby allowing the backrest frame (1) to flip backward relative to the seat cushion wall plate (2).

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