CN115009112A

CN115009112A - Zero-gravity-posture seat adjusting system

Info

Publication number: CN115009112A
Application number: CN202210475677.5A
Authority: CN
Inventors: 郭文庚; 祝志强; 赵培杰; 王长慧; 张新林
Original assignee: GAC Component Co Ltd
Current assignee: GAC Component Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-06

Abstract

The invention discloses a zero gravity posture seat adjusting system, which comprises: the seat frame adjusting system comprises an outer seat frame framework, an inner seat frame framework and an inner seat frame driving mechanism, wherein the rear end of the inner seat frame framework is connected with the rear end of the outer seat frame framework through a first connecting rod mechanism, the front end of the inner seat frame framework is connected with the front end of the outer seat frame framework through a second connecting rod mechanism, and the inner seat frame driving mechanism is connected with the front end of the inner seat frame framework; the backrest adjusting system comprises a backrest framework and a backrest driving mechanism driving the backrest framework to overturn; the leg support adjusting system comprises a leg support assembly and a leg support driving mechanism, the leg support assembly is connected with the front end of the inner seat frame framework through a third connecting rod mechanism in a movable mode, the leg support driving mechanism is connected with the third connecting rod mechanism, and the third connecting rod mechanism is driven to unfold or fold through the leg support driving mechanism. The seat adjusting system not only can meet the requirements of various high-strength tests of the seat, but also accords with human mechanics, improves the riding comfort and can meet various riding modes.

Description

Zero-gravity-posture seat adjusting system

Technical Field

The invention relates to the field of automobile seats, in particular to a seat adjusting system with a zero-gravity posture.

Background

With the development of automobile technology and the popularization of users, automobiles play an increasingly important role in daily life of people, which also promotes higher and higher requirements on various performances of automobiles, particularly when the users need to stay on the automobiles for a long time, the automobiles need to be not only vehicles, but also meet other requirements of the users in the process of travelling, such as rest, sleep and even entertainment.

In order to improve the riding comfort of the automobile seat, a plurality of joints among all parts of the seat framework are designed to be in adjustable connection, so that the posture of the seat can be conveniently adjusted, and all parts of the body can be fully and properly supported.

Passenger car seat can only realize the space demand of taking of different posture personnel in the existing market, can not satisfy different posture passenger's riding comfort demand, and how to bring more comfortable riding experience for the passenger is the important direction of car seat development. The existing seat product still brings uncomfortable feeling to the passengers after the passengers sit for a long time, and the passengers cannot be fully rested and relaxed. In addition, because the seat has multiple adjusting functions and large stroke, the safety of the passenger can be ensured only by completely integrating the three-point safety belt on the seat. In view of this, the present invention provides a high strength seat system that conforms to human mechanics, can effectively improve riding comfort, and can effectively restrain a passenger with a seat belt in any adjusting posture.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a zero-gravity seat adjusting system which accords with human mechanics, can effectively improve riding comfort and has high strength.

The purpose of the invention is realized by adopting the following technical scheme:

a zero-gravity attitude seat adjustment system comprising:

the seat frame adjusting system comprises an outer seat frame framework, an inner seat frame framework and an inner seat frame driving mechanism, wherein the rear end of the inner seat frame framework is connected with the rear end of the outer seat frame framework through a first connecting rod mechanism, the front end of the inner seat frame framework is connected with the front end of the outer seat frame framework through a second connecting rod mechanism, and the inner seat frame driving mechanism is connected with the front end of the inner seat frame framework to adjust the inclination angle of the inner seat frame framework, so that the angle of a seat cushion is adjusted to adapt to a comfortable angle required by thighs when a passenger sits on the seat;

the backrest adjusting system comprises a backrest framework which is arranged at the rear end of the seat frame adjusting system in a turnover manner and a backrest driving mechanism which is used for driving the backrest framework to turn over relative to the seat frame adjusting system;

leg holds in palm governing system, it includes that the leg holds in the palm support assembly, third link mechanism and leg and holds in the palm actuating mechanism, the leg holds in the palm the support assembly and connects through the front end swing joint of third link mechanism and inner frame skeleton, the leg hold in the palm actuating mechanism with third link mechanism connects, holds in the palm the actuating mechanism drive through the leg third link mechanism expandes or folds to make the drive of third link mechanism the leg holds in the palm the support assembly and switches between fold condition completely and expandes to required angle state.

Furthermore, the outer seat frame framework comprises a left outer side plate and a right outer side plate of the outer seat frame and a left inner side plate and a right inner side plate of the outer seat frame, the inner seat frame framework comprises left and right side plates of an inner seat frame and a front tube of the inner seat frame arranged between the left and right side plates of the inner seat frame, the rear ends of the left and right inner side plates of the outer seat frame are provided with a first articulated part, one end of the first connecting rod mechanism is rotatablely arranged on the first articulated part, the rear ends of the left and right side plates of the inner seat frame are provided with second articulated parts which are rotatablely arranged at the other end of the first connecting rod mechanism, the front ends of the left and right outer side plates of the outer seat frame are provided with third hinged parts, one end of the second connecting rod mechanism is rotatablely arranged on the third hinged parts, and a fourth hinged part is arranged at the front end of the left side plate and the right side plate of the inner seat frame and is rotatably arranged at the other end of the second connecting rod mechanism.

Furthermore, the inner seat frame driving mechanism comprises a seat frame screw motor and a seat frame screw, the seat frame screw is connected with the seat frame screw motor, and the inner seat frame framework is provided with a seat frame screw connecting plate connected with the seat frame screw.

Furthermore, the backrest framework is connected with the outer seat framework through two angle adjusters respectively arranged on two sides, the two angle adjusters are connected through a synchronizing rod, and the backrest driving mechanism is in transmission connection with the synchronizing rod, so that the unlocking/locking states of the angle adjusters are controlled.

Furthermore, the backrest driving mechanism is arranged on the backrest framework assembly.

Furthermore, the backrest driving mechanism adopts an angle modulation memory motor or an angle modulation non-memory motor.

Furthermore, the number of the third link mechanisms is two, the two groups of the third link mechanisms are oppositely arranged and spaced, and the two groups of the third link mechanisms are positioned at two sides of the leg support assembly; every third link mechanism of group includes that first leg holds in the palm the connecting rod, second leg holds in the palm the connecting rod, third leg and holds in the palm the connecting rod and the fourth leg holds in the palm the connecting rod, first leg hold in the palm the connecting rod rotationally set up in the leg of the front end of inner seat frame skeleton holds in the palm the connecting plate, the second leg hold in the palm the one end of connecting rod rotationally set up in first leg holds in the palm the connecting rod, the second leg hold in the palm the other end of connecting rod rotationally set up in the leg holds in the palm the support assembly, the third leg hold in the palm the connecting rod rotationally set up in the leg of the front end of inner seat frame skeleton holds in the palm the connecting plate, the fourth leg hold in the palm the one end of connecting rod rotationally set up in the third leg holds in the palm the connecting rod, the fourth leg hold in the palm the other end of connecting rod rotationally set up in the leg holds in the support assembly.

Further, the leg support driving mechanism comprises a leg support lead screw motor, a leg support lead screw, a lead screw connecting plate and a lead screw connecting pipe, wherein the leg support lead screw motor is connected with the leg support lead screw, the lead screw connecting pipe is arranged between two third leg support connecting rods of the two third connecting rod mechanisms, one end of the lead screw connecting plate is connected with the lead screw connecting pipe, and the other end of the lead screw connecting plate is connected with the leg support lead screw.

The seat frame adjusting system comprises a pair of longitudinal slide rails which are arranged in bilateral symmetry, a longitudinal sliding assembly is arranged on each longitudinal slide rail in a sliding mode, the longitudinal sliding assemblies linearly move along the length direction of the longitudinal slide rails after being unlocked so as to drive the seat to longitudinally slide, the longitudinal sliding assemblies are connected with two transverse slide rails through middle bracket assemblies, each transverse slide rail is provided with a transverse sliding assembly in a sliding mode, the transverse sliding assemblies linearly move along the length direction of the transverse slide rails after being unlocked so as to drive the seat to transversely slide, and the outer seat frame framework is connected with the transverse sliding assemblies through a connecting base.

Further, the seat belt retractor is further included, and the seat belt retractor can be fixed at any position of the seat framework.

Compared with the prior art, the invention has the beneficial effects that:

in the invention, the inner seat frame driving mechanism drives the inner seat frame framework to be lifted so as to adjust the inclination angle of the inner seat frame framework, the backrest framework is driven to turn over relative to the seat frame adjusting system through the backrest driving mechanism so as to adjust the inclination angle of the backrest, and the leg support supporting assembly is unfolded to a required angle or completely folded through the leg support driving mechanism and the third connecting rod mechanism, can eliminate the height difference between the seat frame and the backrest and between the seat frame and the leg rest, and adjust the angle state between the components, the chair is in the most comfortable state for human body, the vertebra is in the healthy and relaxed state all the time, the most comfortable sitting posture is kept, the human engineering is met, thereby realize zero gravity posture, so satisfy different passengers' demand, effectively alleviate the passenger and take the fatigue that brings when the car for a long time to can further promote the use travelling comfort and the rest of this seat and experience. Meanwhile, each adjusting system is provided with an independent driving mechanism, a certain adjusting system can be independently adjusted to enable the sitting posture of a passenger to be in a comfortable state, and the sitting posture can be adjusted through a seat control module or a vehicle machine system through a key and can also be independently operated to adapt to independent requirements of different parts.

Drawings

FIG. 1 is one of the schematic views of a zero-gravity seat adjustment system according to the present invention;

FIG. 2 is a second schematic view of a zero-gravity seat adjustment system according to the present invention;

FIG. 3 is a third schematic view of a zero-gravity seat adjustment system according to the present invention;

FIG. 4 is a schematic structural diagram of a matching relationship between the adjustment systems of the seat when the backrest frame of the adjustment system of the zero gravity posture provided by the invention is respectively at the design position, the rear limit position and the front limit position;

FIG. 5 is a schematic view of a zero gravity seat adjustment system according to the present invention with the backrest frame in a design position, the inner frame elevated, and the leg rest in an extended position;

fig. 6 is a schematic structural view of a matching relationship between parts of the zero-gravity seat adjusting system in a zero-gravity state, that is, when the backrest frame is adjusted to a certain angle, the inner seat frame is lifted, and the leg rest is unfolded to a certain angle, of the seat at different viewing angles;

FIG. 7 is a partial schematic view of FIG. 6 at A;

fig. 8 is a schematic structural view of a seat frame adjusting system of a zero gravity seat adjusting system according to the present invention, wherein the inner seat frame is in a lifted state;

fig. 9 is a second schematic structural view of a seat frame adjusting system of a zero gravity seat adjusting system according to the present invention, wherein the inner seat frame is in a lifted state;

FIG. 10 is a schematic view of the inner frame framework of a zero-gravity seat adjustment system according to the present invention;

in the figure: 1. outer seat frame left and right outer panels; 101. a first hinge portion; 2. left and right inner side plates of the outer seat frame; 201. a third hinge; 3. left and right side plates of the inner seat frame; 301. a second hinge portion; 302. a fourth hinge portion; 4. a leg support connecting plate; 5. a first link mechanism; 6. a second link mechanism; 7. an inner seat frame front pipe; 8. a seat frame lead screw connecting plate; 9. a seat frame screw motor; 10. a backrest frame; 11. an angle adjuster; 12. an angle modulation memory motor; 13. a synchronization rod; 14. a leg rest support assembly; 15. a first leg rest link; 16. a second leg rest link; 17. a third leg rest link; 18. a fourth leg rest link; 19. a leg support screw rod motor; 20. a leg support screw rod; 21. a screw rod connecting plate; 22. a screw rod connecting pipe; 23. a seat belt retractor; 24. a longitudinal slide rail; 25. a longitudinal slide assembly; 26. a transverse slide rail; 27. a lateral sliding assembly.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1-10, a zero-gravity seat adjustment system provided by the present invention comprises:

the seat frame adjusting system comprises an outer seat frame framework, an inner seat frame framework and an inner seat frame driving mechanism, wherein the rear end of the inner seat frame framework is connected with the rear end of the outer seat frame framework through a first connecting rod mechanism 5, the front end of the inner seat frame framework is connected with the front end of the outer seat frame framework through a second connecting rod mechanism 6, and the inner seat frame driving mechanism is connected with the front end of the inner seat frame framework to adjust the inclination angle of the inner seat frame framework, so that the angle of a seat cushion is adjusted to adapt to the comfortable angle required by thighs of a passenger when the passenger sits;

the backrest adjusting system comprises a backrest framework 10 which is arranged at the rear end of the seat frame adjusting system in a turnover mode and a backrest driving mechanism which is used for driving the backrest framework 10 to turn over relative to the seat frame adjusting system;

leg holds in palm governing system, it includes that the leg holds in the palm support assembly 14, third link mechanism and leg and holds in the palm actuating mechanism, the leg holds in the palm support assembly 14 and connects through the front end swing joint of third link mechanism and inner frame skeleton, the leg hold in the palm actuating mechanism with third link mechanism connects, holds in the palm the actuating mechanism drive through the leg third link mechanism expandes or folds to make the drive of third link mechanism the leg holds in the palm support assembly 14 and expandes to switching between required angular state at complete fold condition.

In the invention, the inner seat frame driving mechanism drives the inner seat frame framework to lift so as to adjust the inclination angle of the inner seat frame framework, the backrest frame 10 is driven to turn relative to the seat frame adjusting system through the backrest driving mechanism to adjust the inclination angle of the backrest, and the unfolding of the leg rest support assembly 14 to a desired angle or a completely folded state is realized by the leg rest driving mechanism and the third link mechanism, and by the above adjustment, can eliminate the height difference between the seat frame and the backrest and between the seat frame and the leg rest, and adjust the angle state between the components, the chair is in the most comfortable state of the human body, the spine is in a healthy and relaxed state all the time, the most comfortable sitting posture is kept, the chair conforms to the human engineering, thereby realize zero gravity posture, so satisfy different passengers' demand, effectively alleviate the passenger and take the fatigue that brings when the car for a long time to can further promote the use travelling comfort and the rest of this seat and experience. Meanwhile, each adjusting system is provided with an independent driving mechanism, can be adjusted through a seat control module or a vehicle machine system through a key, can be operated independently, and is suitable for independent requirements of different parts.

It should be noted that the leg rest driving mechanism, the inner seat frame driving mechanism and the backrest driving mechanism are all driven by motors with memories, and can be combined with a control module of a seat or a vehicle machine to adjust the seat to any comfortable postures such as a zero-gravity posture, a lying posture and the like by one key.

In addition, the three-point safety belts are uniformly distributed on the seat, the seat adjusting system not only can meet various high-strength test requirements of the seat, but also can meet human mechanics and effectively improve riding comfort, can meet various sitting posture modes, rest modes, zero-gravity posture modes and the like of passengers, and can enter a lying-down mode when the backrest angle of the seat is adjusted to the maximum. By means of this adjustment system it is ensured that the occupant can adjust the seat to the most comfortable state.

In a preferred embodiment, the outer frame framework comprises outer frame left and right outer plates 1 and outer frame left and right inner plates 2, the inner seat frame framework comprises left and right side plates 3 of the inner seat frame and a front tube 7 of the inner seat frame arranged between the left and right side plates 3 of the inner seat frame, the rear ends of the left and right inner side plates 2 of the outer seat frame are provided with a first hinge part 101, one end of the first connecting rod mechanism 5 is rotatablely arranged on the first hinge part 101, the rear ends of the left and right side plates 3 of the inner seat frame are provided with second hinge parts 301, the second hinge parts 301 are rotatably arranged at the other end of the first connecting rod mechanism 5, the front ends of the left and right outer side plates 1 of the outer seat frame are provided with third hinging parts 201, one end of the second connecting rod mechanism 6 is rotatablely arranged on the third hinging parts 201, the front end of the inner seat frame left and right side plates 3 is provided with a fourth hinge part 302, and the fourth hinge part 302 is rotatably arranged at the other end of the second link mechanism 6.

In a preferred embodiment, the inner seat frame driving mechanism includes a seat frame screw motor 9 and a seat frame screw, the seat frame screw is connected to the seat frame screw motor 9, and the inner seat frame skeleton is provided with a seat frame screw connecting plate 8 connected to the seat frame screw. In the invention, the inclination angle of the inner seat frame framework is driven to change by the seat frame screw motor 9, so that the operation is simple and convenient.

It should be noted that the inner frame driving mechanism of the present invention may also adopt any type of motor, such as a high-angle motor, an angle-adjusting motor, etc., and may be a motor with memory or non-memory.

In a preferred embodiment, the backrest frame 10 is connected to the outer frame through two recliner 11 respectively provided at both sides, the two recliner 11 are connected through a synchronizing rod 13, and the backrest driving mechanism is connected to the synchronizing rod 13, thereby controlling the unlocking/locking state of the recliner 11.

The angle adjuster 11 is used for flexibly adjusting the angle of the backrest, so that the backrest framework 10 can stop at any movement position, the requirement of comfort degree of all passengers at different positions is met, the human body can be in the most comfortable state, the spine is constantly in a healthy and relaxed state, and the most comfortable sitting posture is kept. As shown in fig. 4, the A, B, C arrows indicate positions of the back frame 10 at the rear limit position, the design position, and the front limit position, respectively.

In a preferred embodiment, the backrest driving mechanism is disposed on the backrest frame 10 assembly. So that the adjustment is convenient and fast.

In a preferred embodiment, the backrest driving mechanism adopts a recliner memory motor 12 or a recliner non-memory motor. By adopting the angle modulation memory motor 12, one-key adjustment can be realized according to the memory function of the angle modulation memory motor, and quick and flexible adjustment can be realized.

In a preferred embodiment, the third link mechanisms are two sets, two sets of the third link mechanisms are oppositely arranged and spaced apart, and two sets of the third link mechanisms are located at two sides of the leg rest support assembly 14; every third link mechanism of group includes that first leg holds in the palm connecting rod 15, second leg holds in the palm connecting rod 16, third leg and holds in the palm connecting rod 17 and fourth leg and hold in the palm connecting rod 18, first leg hold in the palm connecting rod 15 rotationally set up in the leg of the front end of inner seat frame skeleton holds in the palm connecting plate 4, second leg hold in the palm the one end of connecting rod 16 rotationally set up in first leg holds in the palm connecting rod 15, the other end that second leg held in the palm connecting rod 16 rotationally set up in leg holds in the palm support assembly 14, third leg hold in the palm connecting rod 17 rotationally set up in the leg of the front end of inner seat frame skeleton holds in the palm connecting plate 4, the one end that fourth leg held in the palm connecting rod 18 rotationally set up in third leg holds in the palm connecting rod 17, the other end that fourth leg held in the palm connecting rod 18 rotationally set up in the leg holds in the palm support assembly 14. In the present invention, since the first leg rest link 15, the second leg rest link 16, the third leg rest link 17 and the fourth leg rest link 18 can rotate, when the leg rest support assembly 14 needs to be unfolded, under the driving of the first leg support connecting rod 15, the second leg support connecting rod 16, the third leg support connecting rod 17 and the fourth leg support connecting rod 18, the leg support assembly 14 can move to the unfolding position, when the leg support assembly 14 needs to be folded, under the driving of the first leg support connecting rod 15, the second leg support connecting rod 16, the third leg support connecting rod 17 and the fourth leg support connecting rod 18, the leg support supporting assembly 14 can move to the front end of the seat frame, this arrangement enables the leg rest support assembly 14 to be extended from the folded space to be unfolded to a desired angular state or retracted into the folded space to be in a stored state, and the third link mechanism is simple in structure, and can simplify the overall structure of the leg rest. In addition, through the arrangement of the third link mechanism, the leg support driving mechanism can be matched with the folding action of the third link mechanism, so that the leg support supporting assembly 14 can be fully folded, the thickness of the folded leg support supporting assembly 14 is reduced, the purpose of saving the space in the vehicle is achieved, the occupied space is small, and the folding leg support driving mechanism is very humanized.

As a preferred embodiment, the leg support driving mechanism includes a leg support screw rod motor 19, a leg support screw rod 20, a screw rod connecting plate 21 and a screw rod connecting pipe 22, the leg support screw rod motor 19 is connected to the leg support screw rod 20, the screw rod connecting pipe 22 is disposed between two third leg support connecting rods 17 of two sets of the third link mechanisms, one end of the screw rod connecting plate 21 is connected to the screw rod connecting pipe 22, and the other end of the screw rod connecting plate 21 is connected to the leg support screw rod 20.

Through the arrangement of the leg support screw rod motor 19, external force is not needed for unfolding and folding the leg support assembly 14, and according to the matching of the leg support screw rod motor 19 and the leg support screw rod 20, after the leg support screw rod motor 19 is electrified, the leg support screw rod motor 19 drives the leg support screw rod 20 to move, and the leg support screw rod 20 drives the screw rod connecting pipe 22 to move, so that the automatic unfolding and folding functions of the leg support assembly 14 are realized. The leg support driving mechanism can conveniently control the third link mechanism to drive the leg support supporting assembly 14 to switch between the folding state and the unfolding state.

Of course, the leg rest driving mechanism of the invention can also adopt a memory motor.

As a preferred embodiment, the seat frame adjusting system further comprises two sets of slide rail assembly systems which are located at the bottom of the seat frame adjusting system and are used for driving the seat frame adjusting system to move front and back and left and right, the slide rail assembly systems comprise a pair of longitudinal slide rails 24 which are arranged in bilateral symmetry, a longitudinal sliding component 25 is arranged on each longitudinal slide rail 24 in a sliding manner, and after being unlocked, the longitudinal sliding components 25 linearly move along the length direction of the longitudinal slide rails 24, so that the seat is driven to longitudinally slide. Two longitudinal sliding assemblies 25 are connected with a pair of transverse sliding rails 26 through a middle bracket assembly, each transverse sliding rail 26 is provided with a transverse sliding assembly 27 in a sliding mode, the transverse sliding assemblies 27 perform linear motion along the length direction of the transverse sliding rails 26 after being unlocked, so that the seat is driven to slide transversely, and the outer seat frame framework is connected with the transverse sliding assemblies 27 through a connecting base. Through setting up slide rail assembly system, realize the preceding/back of seat, left/right removal regulation, it is nimble convenient to adjust, satisfies the difference and takes the demand.

In a preferred embodiment, the seat belt retractor 23 is further included, and the seat belt retractor 23 can be fixed at any position of the seat frame. Through setting up safety belt coiler 23, can realize that the safety belt fixed point is located the seat, it is safer, convenient.

In the invention, when the seat is in a design state, the backrest adjusting system, the seat frame adjusting system, the leg support adjusting system and the slide rail adjusting system are all in design positions, all parts are adjusted independently, a certain adjusting system can be independently adjusted to enable the sitting posture of a passenger to be in a more comfortable state, the backrest is adjusted through the angle adjusting memory motor 12, the backrest can be hovered at any position between the front limit position and the rear limit position, and the backrest has a memory function and can realize memory adjustment; the seat frame is adjusted by driving the inner seat frame framework to realize the lifting of the seat frame through a seat frame screw rod motor 9, and the seat frame screw rod motor 9 has a memory function and can realize memory adjustment; the leg support adjusting system mainly comprises a leg support lead screw motor 19 and a third connecting rod mechanism, the leg support can be folded and unfolded through the driving of the leg support lead screw motor 19 and can be suspended at a proper position, and the leg support lead screw motor 19 has a memory function and can realize memory adjustment; the slide rail adjusting system can realize longitudinal and transverse movement through adjustment of a slide rail motor, and the motor has a memory function and can realize memory adjustment; when the backrest, the seat frame assembly and the leg supports are adjusted in a linkage mode, one-key adjustment can be achieved through a memory function, when the backrest can be inclined backwards by 40 degrees or 60 degrees according to the requirement of self comfort, the seat frame is completely lifted, and the leg supports are completely unfolded, a posture of nearly lying down is achieved, the seat is in a zero-gravity state, fatigue of passengers can be greatly reduced, the spines of the passengers are sufficiently supported, the passengers are enabled to be relaxed in natural positions, and zero-gravity adjustment is achieved.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A zero-gravity attitude seat adjustment system, comprising:

the seat frame adjusting system comprises an outer seat frame framework, an inner seat frame framework and an inner seat frame driving mechanism, wherein the rear end of the inner seat frame framework is connected with the rear end of the outer seat frame framework through a first connecting rod mechanism (5), the front end of the inner seat frame framework is connected with the front end of the outer seat frame framework through a second connecting rod mechanism (6), and the inner seat frame driving mechanism is connected with the front end of the inner seat frame framework to adjust the inclination angle of the inner seat frame framework so as to adjust the angle of a seat cushion to adapt to the comfortable angle required by thighs when a passenger sits on the seat;

the backrest adjusting system comprises a backrest framework (10) which is arranged at the rear end of the seat frame adjusting system in a turnover mode and a backrest driving mechanism which is used for driving the backrest framework (10) to turn over relative to the seat frame adjusting system;

leg holds in palm governing system, it includes that the leg holds in the palm support assembly (14), third link mechanism and leg and holds in the palm actuating mechanism, the leg holds in the palm support assembly (14) and connects to pass through the front end swing joint of third link mechanism and interior seat frame skeleton, the leg hold in the palm actuating mechanism with third link mechanism connects, holds in the palm the actuating mechanism drive through the leg third link mechanism expandes or folds to make the drive of third link mechanism the leg holds in the palm support assembly (14) and switches between complete fold condition and expansion to required angular state.

2. The zero-gravity-posture seat adjusting system according to claim 1, wherein the outer seat frame framework comprises outer seat frame left and right outer side plates (1) and outer seat frame left and right inner side plates (2), the inner seat frame framework comprises inner seat frame left and right side plates (3) and an inner seat frame front tube (7) arranged between the inner seat frame left and right side plates (3), the rear end of the outer seat frame left and right inner side plates (2) is provided with a first hinge portion (101), one end of the first link mechanism (5) is rotatably arranged on the first hinge portion (101), the rear end of the inner seat frame left and right side plates (3) is provided with a second hinge portion (301), the second hinge portion (301) is rotatably arranged at the other end of the first link mechanism (5), the front end of the outer seat frame left and right outer side plates (1) is provided with a third hinge portion (201), one end of the second link mechanism (6) is rotatably arranged on the third hinge portion (201), the front ends of the left side plate and the right side plate (3) of the inner seat frame are provided with fourth hinged parts (302), and the fourth hinged parts (302) are rotatably arranged at the other ends of the second link mechanisms (6).

3. The zero-gravity seat adjusting system according to claim 1, wherein the inner seat frame driving mechanism comprises a seat frame screw motor (9) and a seat frame screw connected with the seat frame screw motor (9), and the inner seat frame framework is provided with a seat frame screw connecting plate (8) connected with the seat frame screw.

4. The zero gravity seat adjustment system according to claim 1, wherein the backrest frame (10) is connected to the outer frame by two angle adjusters (11) respectively disposed at both sides, the two angle adjusters (11) are connected by a synchronizing rod (13), and the backrest driving mechanism is drivingly connected to the synchronizing rod (13) to control the unlocking/locking states of the angle adjusters (11).

5. The zero-gravity seat adjustment system according to claim 4, wherein the backrest drive mechanism is provided on the backrest frame (10) assembly.

6. The zero-gravity-attitude seat adjustment system according to claim 5, wherein the backrest drive mechanism employs a recliner memory motor (12) or a recliner non-memory motor.

7. The zero-gravity-attitude seat adjustment system according to claim 1, wherein the third linkages are two sets of oppositely disposed and spaced apart third linkages on opposite sides of the leg rest support assembly (14); each group of third connecting rod mechanisms comprises a first leg support connecting rod (15), a second leg support connecting rod (16), a third leg support connecting rod (17) and a fourth leg support connecting rod (18), the first leg support connecting rod (15) is rotatably arranged on a leg support connecting plate (4) at the front end of the inner seat frame framework, one end of the second leg support connecting rod (16) is rotatably arranged on the first leg support connecting rod (15), the other end of the second leg support connecting rod (16) is rotatably arranged on the leg support supporting assembly (14), the third leg support connecting rod (17) is rotatably arranged on a leg support connecting plate (4) at the front end of the inner seat frame framework, one end of the fourth leg support connecting rod (18) is rotatably arranged on the third leg support connecting rod (17), the other end of the fourth leg rest connecting rod (18) is rotatably arranged on the leg rest supporting assembly (14).

8. The zero gravity seat adjusting system of claim 7, wherein the leg rest driving mechanism comprises a leg rest screw motor (19), a leg rest screw (20), a screw connecting plate (21) and a screw connecting pipe (22), the leg rest screw motor (19) is connected with the leg rest screw (20), the screw connecting pipe (22) is arranged between two third leg rest connecting rods (17) of the two sets of the third link mechanisms, one end of the screw connecting plate (21) is connected with the screw connecting pipe (22), and the other end of the screw connecting plate (21) is connected with the leg rest screw (20).

9. The zero-gravity-posture seat adjusting system as claimed in claim 1, further comprising a slide rail adjusting system, which comprises two sets of slide rail assembly systems located at the bottom of the seat frame adjusting system and used for driving the seat frame adjusting system to move front and back and left and right, the slide rail system comprises a pair of longitudinal slide rails (24) symmetrically arranged left and right, a longitudinal sliding component (25) is slidably arranged on each longitudinal slide rail (24), the longitudinal sliding component (25) linearly moves along the length direction of the longitudinal slide rail (24) after being unlocked so as to drive the seat to longitudinally slide, a pair of transverse slide rails (26) is connected to the pair of longitudinal sliding components (25) through an intermediate bracket component, a transverse sliding component (27) is slidably arranged on each transverse slide rail (26), and the transverse sliding component (27) linearly moves along the length direction of the transverse slide rails (26) after being unlocked, thereby driving the seat to slide laterally, and the outer seat frame framework is connected with the transverse sliding component (27) through a connecting base.

10. The zero-gravity seat adjustment system according to claim 1, further comprising a seat belt retractor (23), wherein the seat belt retractor (23) is fixable at any position of the seat frame.