CN217532623U - Zero-gravity-posture seat adjusting system - Google Patents

Abstract

The utility model discloses a seat governing system of zero gravity gesture, include: 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 for driving the backrest framework to overturn; the leg support adjusting system comprises a leg support supporting assembly and a leg support driving mechanism, the leg support supporting assembly is connected with the front end of the inner seat frame framework through a third connecting rod mechanism and is movably connected with the front end of the inner seat frame framework, 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 can meet various high-strength test requirements of the seat, accords with human mechanics, improves riding comfort, and can meet various riding modes.

Description

Zero-gravity-posture seat adjusting system

Technical Field

The utility model relates to a car seat field especially relates to a seat governing system of zero gravity gesture.

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 prompts people to have higher and higher requirements on various performances of automobiles, especially when the users need to stay on the automobiles for a long time, the automobiles are not only required to be vehicles, but also required to 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 passengers after long-time riding, 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, this patent provides a high strength seat system that accords with human mechanics, can effectively promote the riding comfort, and the safety belt homoenergetic effectively retrains passenger under any regulation gesture.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a seat governing system of zero gravity gesture accords with human mechanics, can effectively promote the riding comfort, and has high strength.

The purpose of the utility model 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 of a passenger when the passenger sits on the seat cushion;

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.

Further, the outer seat frame framework comprises an outer seat frame left and right outer side plate and an outer seat frame left and right inner side plate, the inner seat frame framework comprises an inner seat frame left and right side plate and an inner seat frame front tube arranged between the inner seat frame left and right side plate, a first hinge portion is arranged at the rear end of the outer seat frame left and right inner side plate, one end of a first connecting rod mechanism is rotatably arranged on the first hinge portion, a second hinge portion is arranged at the rear end of the inner seat frame left and right side plate, the second hinge portion is rotatably arranged at the other end of the first connecting rod mechanism, a third hinge portion is arranged at the front end of the outer seat frame left and right outer side plate, one end of the second connecting rod mechanism is rotatably arranged on the third hinge portion, a fourth hinge portion is arranged at the front end of the inner seat frame left and right side plate, and the fourth hinge portion 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 state of the angle adjusters is 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 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 leg holds in the palm the support assembly, 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 palm 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 beneficial effects of the utility model reside in that:

the utility model discloses in, through the inclination of seat frame skeleton lifting in the drive of interior seat frame actuating mechanism in order to adjust interior seat frame skeleton, order about the back skeleton through back actuating mechanism and overturn for seat frame governing system in order to adjust the inclination of back, and hold in the palm actuating mechanism and third link mechanism through the leg and realize that the leg holds in the palm the expansion of supporting assembly to required angle or folding completely, through the aforesaid regulation, can eliminate between seat frame and the back, and the height section difference between seat frame and the leg support, and adjust the angular regime between the above-mentioned part, make the seat be in the most comfortable state of human body, let the vertebra constantly be in healthy, the state of relaxing, keep the most comfortable position of sitting, accord with ergonomic, thereby realize zero gravity posture, so satisfy different passenger's demand, effectively alleviate the passenger and take the fatigue that the car brought when taking for a long time, thereby 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 diagrams of a zero gravity seat adjustment system provided by 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 view of a fitting relationship between the adjustment systems of the seat when the backrest frame of the zero gravity posture seat adjustment system provided by the present invention is at the design position, the rear limit position, and the front limit position, respectively;

fig. 5 is a schematic view of the backrest frame of the zero gravity seat adjusting system provided by the present invention in a design position, the inner frame is lifted, and the leg rest is in an unfolded state;

fig. 6 is a schematic structural view of the fitting relationship between the parts of the zero-gravity seat adjusting system provided by the present invention in a zero-gravity state, i.e., the backrest frame is adjusted to a certain angle, the inner frame is lifted, and the leg rest is unfolded to a certain angle state;

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

fig. 8 is one of the schematic structural diagrams of the seat frame adjusting system of the seat adjusting system with zero gravity posture provided by the present invention, at this time, the inner seat frame is in a lifted state;

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

fig. 10 is a schematic view of an 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 side plates; 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 lead screw 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 the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it should 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 the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not 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 explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1XX" and "2XX" are structurally identical and functionally similar).

As shown in fig. 1-10, for the present invention provides a zero gravity seat adjusting 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 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 turnable way and a backrest driving mechanism which is used for driving the backrest framework 10 to turn 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.

The utility model discloses in, through the inclination of seat frame skeleton lifting in the drive of interior seat frame actuating mechanism in order to adjust interior seat frame skeleton, order about back skeleton 10 through back actuating mechanism and overturn for seat frame governing system in order to adjust the inclination of back, and support actuating mechanism and third link mechanism through the leg and realize that the leg holds in the palm the expansion of supporting assembly 14 to required angle or turn over the state completely, through the aforesaid regulation, can eliminate between seat frame and the back, and the high segment difference between seat frame and the leg support, and adjust the angular regime between the above-mentioned part, make the seat be in the most comfortable state of human body, let the vertebra constantly be in healthy, the state of relaxing, keep the most comfortable position of sitting, accord with ergonomic, thereby realize zero gravity posture, so satisfy different passengers's demand, effectively alleviate the fatigue that brings when the passenger takes the car for a long time, thereby 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 utility model discloses a leg holds in palm actuating mechanism, interior seat frame actuating mechanism, back actuating mechanism and all adopts the motor of taking the memory to drive, can combine the control module of seat or car machine, and the arbitrary comfortable gesture such as seat to "zero gravity gesture", "the gesture of lying flat" is adjusted to a key.

Additionally, the utility model discloses a on the seat was arranged in to the bikini safety belt equipartition, this seat governing system not only can satisfy all kinds of high strength test requirements of seat, accords with human mechanics moreover and effectively promotes and take the travelling comfort, can satisfy various position of sitting modes of passenger, rest mode, zero gravity gesture mode etc. with the back angular adjustment of seat to when the biggest, can also get into "lying flat" mode. 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 seat frame framework includes an outer seat frame left and right outer side plate 1 and an outer seat frame left and right inner side plate 2, the inner seat frame framework includes an inner seat frame left and right side plate 3 and an inner seat frame front tube 7 disposed between the inner seat frame left and right side plate 3, a first hinge portion 101 is disposed at a rear end of the outer seat frame left and right inner side plate 2, one end of the first link mechanism 5 is rotatably disposed on the first hinge portion 101, a second hinge portion 301 is disposed at a rear end of the inner seat frame left and right side plate 3, the second hinge portion 301 is rotatably disposed at the other end of the first link mechanism 5, a third hinge portion 201 is disposed at a front end of the outer seat frame left and right outer side plate 1, one end of the second link mechanism 6 is rotatably disposed on the third hinge portion 201, a fourth hinge portion 302 is disposed at a front end of the inner seat frame left and right side plate 3, and the fourth hinge portion 302 is rotatably disposed at the other end of the second link mechanism 6.

As 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 is provided with a seat frame screw connecting plate 8 connected to the seat frame screw. The utility model discloses in, through seat frame lead screw motor 9 drive inner frame skeleton inclination change, easy operation is convenient.

It should be noted that the inner seat frame driving mechanism of the present invention can also adopt any type of motor, such as a high-angle motor, an angle-adjusting motor, etc., and can 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 positions indicated by the arrows A, B, C are 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. The utility model discloses in, because first leg holds in the palm connecting rod 15, second leg support connecting rod 16, third leg support connecting rod 17 and fourth leg support connecting rod 18 and can rotate, when needs hold in the palm support assembly 14 with the leg and expand, hold in the palm connecting rod 15 at first leg, second leg support connecting rod 16, third leg support connecting rod 17 and fourth leg support connecting rod 18 under the common drive, leg support assembly 14 can move to the position of expanding, when needs hold in the palm support assembly 14 folding, hold in the palm connecting rod 15, second leg support connecting rod 16, third leg support connecting rod 17 and fourth leg support connecting rod 18 at first leg, hold in the palm the front end that supporting assembly 14 can move to the seat frame, set up like this and to realize that leg support assembly 14 follows stretch out in the folding space in order to expand to required angle state or withdraw to in the folding space in order to be the state of accomodating to, and this third link mechanism's simple structure can simplify the overall structure that the leg held in the support. 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 support driving mechanism of the utility model 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, each slide rail assembly system comprises 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 movement adjustment, 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 utility model, when the seat is in the 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 the design position, all parts are adjusted independently, and can be adjusted independently to enable the sitting posture of a passenger to be in a more comfortable state, the backrest is adjusted by the angle modulation memory motor 12, can hover at any position between the front limit position and the rear limit position, has the memory function, and can realize the 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, the chair can be in a posture of being approximately flat and lying, the fatigue of passengers can be greatly reduced, the spines of the passengers can be sufficiently supported, the passengers can 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 cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

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 manner 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 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 fold condition completely and expand to required angular state.

2. The zero-gravity seat adjusting system as claimed in 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), a first hinge portion (101) is arranged at the rear end of the outer seat frame left and right inner side plates (2), one end of the first connecting rod mechanism (5) is rotatably arranged on the first hinge portion (101), a second hinge portion (301) is arranged at the rear end of the inner seat frame left and right side plates (3), the second hinge portion (301) is rotatably arranged at the other end of the first connecting rod mechanism (5), a third hinge portion (201) is arranged at the front end of the outer seat frame left and right outer side plates (1), one end of the second connecting rod mechanism (6) is rotatably arranged on the third hinge portion (201), a fourth hinge portion (302) is arranged at the front end of the inner seat frame left and right side plates (3), and the fourth connecting rod mechanism (302) is rotatably arranged at the other end of the fourth connecting rod mechanism (6).

3. The zero-gravity seat adjustment 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); 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 leg support connecting plate (4) of the front end of inner frame skeleton, the 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 support assembly (14), third leg hold in the palm connecting rod (17) rotationally set up in leg support connecting plate (4) of the front end of inner frame skeleton, the one end that fourth leg held in the palm connecting rod (18) rotationally set up in third leg support connecting rod (17), the other end that fourth leg held in the palm connecting rod (18) rotationally set up in leg support assembly (14).

8. The zero-gravity-posture seat adjusting system according to 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 seat adjusting system according to 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), after being unlocked, the longitudinal sliding component (25) linearly moves along the length direction of the longitudinal slide rail (24) 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), after being unlocked, the transverse sliding component (27) linearly moves along the length direction of the transverse slide rails (26) so as to drive the seat to laterally slide, and the outer seat frame framework is connected with the transverse sliding component (27) through a connecting base.

10. The zero gravity attitude seat adjustment system of claim 1, further comprising a seat belt retractor (23), the seat belt retractor (23) securable at any position of the seat frame.

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