CN114954166B

CN114954166B - Vehicle seat structure and vehicle

Info

Publication number: CN114954166B
Application number: CN202110216045.2A
Authority: CN
Inventors: 周青; 程锦; 黄媛
Original assignee: Tsinghua University
Current assignee: Tsinghua University
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2023-09-26
Anticipated expiration: 2041-02-26
Also published as: CN114954166A

Abstract

The invention relates to a vehicle seat module and a vehicle. The vehicle seat structure includes a seat, a restraint module, a top anchor module, a bottom anchor module, and a connection module; the upper anchor point and the lower anchor point of the constraint module are arranged on the seat; the connecting module is made of flexible materials, a first end of the connecting module is fixedly connected with the chair back of the chair, and a second end of the connecting module is wound on the top anchoring module; the top anchoring module and the bottom anchoring module are used for synchronously driving the seat to rotate around the vertical direction, and the top anchoring module is also used for retracting the second end of the connecting module to adjust the inclination angle of the chair back. The top anchoring module of the vehicle seat structure can synchronously drive the seat to do linear motion or rotate around the vertical shaft on the premise of adjusting the inclination angle of the seat back of the seat, so that the transmission path of force can be increased in the collision process, namely, the path of transmitting inertial force to the roof is increased, the requirements on the seat angle adjuster and the rigidity of the seat back are reduced, and the cost and the quality of the seat are reduced.

Description

Vehicle seat structure and vehicle

Technical Field

The invention relates to the technical field of vehicle safety, in particular to a vehicle seat structure and a vehicle.

Background

In most existing vehicle seat arrangements, the seat is mostly arranged in the vehicle forward direction, and the seat is provided with an occupant restraint device of a seat belt and an airbag. Taking the frontal collision process as an example, the occupant moves the torso forward relative to the vehicle due to inertia during the initial stage of the collision, but the occupant's upper torso will be subjected to rearward forces due to the restraint of the seat belt on the shoulders and chest. After the airbag is unfolded, the chest and the head of the passenger can be subjected to another deceleration acting force due to the deformation of the airbag, so that the upper trunk of the passenger is controlled, and the damage caused by collision (secondary collision) with the hard part of the interior trim is avoided.

At present, the upper anchor point of the safety belt of most passenger vehicles is fixed on the B column of the vehicle, and the air bag is mostly positioned in a mechanism in front of an occupant. The shoulder belt portion of the seat belt should be in contact with a stronger portion of the occupant's shoulder under normal conditions, but the position of the upper anchor point of the seat belt relative to the seat will change during adjustment of the seat by different sized occupants, and the shoulder belt is often in non-standard contact with the occupant. In a highly autonomous car, where the position and orientation of the occupant can be freely adjusted, it is apparent that fixing the upper anchor of the seat belt to the B pillar of the car cannot achieve the desired restraint in any position and orientation, and one solution is to fix the upper anchor of the seat belt to the position of the seat shoulder, the relative position of the upper anchor of the seat belt to the seat changes less during adjustment of the seat by the occupant, and the seat belt can more desirably restrain the movement of the upper torso of the occupant. Meanwhile, the safety belt integrated on the seat can well reduce impact damage of the seat belt with rebound passengers after the safety belt is loosened when in a tail collision.

If the upper anchor point is adopted to set up the safety belt on seat back upper portion, during the collision, the reaction force that retrains passenger's motion will no longer can transmit on the great B post of rigidity, but be applied to seat back and the angle modulation ware that the back is connected with the bottom, the moment that the atress structure of cantilever beam type made the back of the chair and angle modulation ware need bear like this is bigger, the requirement to its rigidity is higher, and then lead to the cost and the weight increase of seat, consequently, often in luxurious motorcycle type, be difficult to use in some small-size or low-cost motorcycle types.

Disclosure of Invention

Accordingly, it is necessary to provide a vehicle seat structure and a vehicle, in which the seat belt provided at the upper anchor point in the upper portion of the seat back causes an increase in the cost and weight of the seat.

A vehicle seat structure, the vehicle seat structure comprising: a seat, a restraint module, a top anchor module, a bottom anchor module, and a connection module;

the upper anchor point and the lower anchor point of the constraint module are connected with the seat;

the connecting module is made of flexible materials, a first end of the connecting module is fixedly connected with a chair back of the chair, a second end of the connecting module is wound on the top anchoring module, and the first end and the second end of the connecting module are distributed relatively;

the top anchoring module is used for synchronously driving the seat to rotate around the vertical direction, and the top anchoring module is also used for retracting the second end of the connecting module so as to adjust the inclination angle of the chair back.

In one embodiment thereof, the vehicle seat structure further comprises: the environment sensing and risk pre-judging module is used for acquiring road environment information of vehicle driving and judging whether collision risk exists on the vehicle or not based on the road environment information;

and the control module is used for driving the top anchoring module and/or the bottom anchoring module to drive the seat to rotate by a preset angle when the collision risk exists in the vehicle.

In one embodiment thereof, the top anchor module comprises: a top mount;

the top rotating piece is rotatably arranged on the top fixing piece;

the winding piece is rotatably arranged on the top rotating piece and is used for winding the second end of the connecting module;

the first driving piece is used for driving the winding piece to rotate so as to wind and unwind the second end of the connecting module.

In one embodiment thereof, the first driving member includes: the first motor is fixedly arranged on the top rotating piece;

a first bevel gear arranged on an output shaft of the first motor;

a second bevel gear rotatably provided on the top rotating member and engaged with the first bevel gear, wherein the second bevel gear is perpendicular to the axis of the first bevel gear;

the first worm is coaxially connected with the second bevel gear;

and the first worm wheel is arranged on the winding piece and meshed with the first worm.

In one embodiment thereof, the bottom anchor module comprises: the second driving piece is arranged between the mounting seat and the bottom plate of the seat;

the second driving piece is used for driving the seat to rotate relative to the mounting seat.

In one embodiment thereof, the second driving member includes: the device comprises a mounting seat, a first motor, a first worm wheel, a first gear and a second gear, wherein the mounting seat is fixedly arranged on the first motor, the first worm is arranged on an output shaft of the first motor and rotatably arranged on the mounting seat, the first worm is meshed with the first worm and rotatably arranged on the mounting seat, the first worm wheel is meshed with the first worm, the first gear is meshed with the second worm wheel and rotatably arranged on the mounting seat, and the first gear is meshed with the first gear and fixedly arranged on the bottom plate.

In one embodiment thereof, the seat comprises: a bottom plate, a chair back and a cushion;

the vehicle seat structure further includes: cushion adjustment module, cushion adjustment module includes: the seat cushion comprises a bottom plate, a first motor, a first gear, a second gear, a screw rod, a screw nut and a seat cushion, wherein the bottom plate is provided with the first motor, the first gear is arranged on an output shaft of the first motor, the second gear is meshed with the first gear, the screw rod is coaxially connected with the first gear, and the screw rod nut is arranged on the screw rod.

In one embodiment, the middle part of the connecting module is penetrated in a limit hole of the chair back of the chair;

the vehicle seat structure further includes: a bi-directional locking module, the bi-directional locking module comprising: the third driving piece is arranged on the chair back, the mandrel is rotatably arranged in the limiting hole, and the locking piece is positioned in the groove of the mandrel;

the third driving piece is used for driving the mandrel to rotate along a first direction so as to push the locking piece to move towards the outside of the groove until the middle part of the connecting module is pressed in the limiting hole, or driving the mandrel to rotate along a second direction opposite to the first direction and pushing the locking piece back into the groove through the tension of the connecting module so as to loosen the connecting module.

In one embodiment thereof, the third driving member includes: a fifth motor;

the third bevel gear is arranged on the output shaft of the fifth motor;

a fourth bevel gear meshed with the third bevel gear, wherein the fourth bevel gear is perpendicular to the axis of the third bevel gear;

the third worm is coaxially connected with the fourth conical gear;

and the third worm wheel is coaxially connected with the mandrel and meshed with the third worm.

A vehicle comprising a vehicle seat structure as claimed in any one of the preceding claims.

According to the vehicle seat structure and the vehicle, the top anchoring module of the vehicle seat structure can synchronously drive the seat to rotate around the vertical direction with the bottom anchoring module on the premise of adjusting the inclination angle of the seat back of the seat, so that a force transmission path can be increased in the collision process, namely, the path for transmitting inertia force to the roof is increased, the requirements on the angle regulator and the rigidity of the seat back of the seat are reduced, and the cost and the quality of the seat are reduced. In addition, the vehicle seat structure also has the characteristics of simple structure and low preparation cost.

Drawings

FIG. 1 is a schematic view of a vehicle seat structure according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of an assembly of a seat and a roof anchor module in a first orientation according to one embodiment of the present invention;

FIG. 3 is a schematic view of an assembly of a seat and a roof anchor module in a second orientation according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of an assembly between a top anchor module and a connection module according to one embodiment of the present invention;

FIG. 5 is a partial schematic view of a roof anchor module according to one embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a mounting base according to an embodiment of the present invention;

FIG. 7 is a schematic view illustrating an inside of a mounting base according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a seat cushion of a seat according to an embodiment of the present invention;

FIG. 9 is a schematic diagram illustrating an assembly between a cushion adjustment module and a floor according to an embodiment of the present invention;

FIG. 10 is a schematic workflow diagram of a vehicle seat structure according to an embodiment of the present invention;

FIG. 11 is a schematic diagram illustrating an assembly between a bi-directional locking module and a connecting module according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a bidirectional locking module according to an embodiment of the invention.

Wherein, the reference numerals in the drawings are as follows:

100. a seat; 110. a bottom plate; 111. a mounting base; 120. a chair back; 130. a cushion; 200. a top anchor module; 210. a top mount; 220. a top rotating member; 230. a winding member; 240. a first driving member; 241. a first motor; 242. a first bevel gear; 243. a second bevel gear; 244. a first worm; 245. a first worm wheel; 250. a fixing member; 300. a bottom anchor module; 310. a second driving member; 311. a second motor; 312. a second worm; 313. a first gear; 314. a second gear; 320. a bottom fixing member; 321. a second linear rail; 330. a bottom rotating member; 331. a first linear track; 400. a connection module; 500. a cushion adjustment module; 510. a third motor; 520. a third gear; 530. a fourth gear; 540. a screw rod; 550. a lead screw nut; 560. a support rod; 600. a two-way locking module; 610. a third driving member; 611. a fifth motor; 612. a third bevel gear; 613. a fourth bevel gear; 614. a third worm wheel; 615. a third worm wheel; 620. a mandrel; 620a, grooves; 630. and a locking piece.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1, an embodiment of the present invention provides a vehicle seat structure including: a seat 100, restraint modules (not shown in the figures), a top anchor module 200, a bottom anchor module 300, and a connection module 400; the upper and lower anchor points of the restraint module are connected with the seat 100; the connecting module 400 is made of flexible materials, the first end of the connecting module 400 is fixedly connected with the seat 100, the second end of the connecting module 400 is wound on the top anchoring module 200, and the first end and the second end of the connecting module 400 are distributed relatively; the top and bottom anchor modules 200 and 300 are used for synchronously driving the seat 100 to rotate around the vertical direction, and the top anchor module 200 is also used for retracting the second end of the connection module 400 to adjust the inclination angle of the seat back 120.

As an example, the restraint module is a three-point seat belt, the upper anchor of the restraint module may be secured to the headrest of the seatback 120 of the seat 100, and the lower anchor of the restraint module may be secured to the floor 110 of the seat 100.

Alternatively, the material of the connection module 400 may be the same as that of the three-point seat belt. As shown in fig. 3, the first end of the connection module 400 may be fixedly coupled to the rear end of the floor 110 of the seat 100. The front and rear directions of the vehicle according to the embodiment of the present invention are the front and rear directions of the vehicle. When the top anchor module 200 tightens the second end of the link module 400, the link module 400 may move the seat 100 forward; when the top anchor module 200 releases the second end of the link module 400, the occupant may push the seat 100 rearward.

In the vehicle seat structure described above, the top anchor module 200 and the bottom anchor module 300 can synchronously drive the seat 100 to rotate around the vertical direction on the premise of adjusting the inclination angle of the seat back 120 of the seat 100, so that a transmission path of force can be increased in the collision process, that is, a path of transmitting inertial force to the roof is increased, and the requirements on the recliner of the seat 100 and the rigidity of the seat back 120 are reduced, thereby reducing the cost and the quality of the seat 100. In addition, the vehicle seat structure also has the characteristics of simple structure and low preparation cost.

In some embodiments of the invention, the vehicle seat structure further comprises: an environmental awareness and risk prognosis module and a control module (not shown in the figures); the environment perception and risk prejudging module is used for acquiring road environment information of the vehicle running and judging whether the vehicle has collision risk or not based on the road environment information; the control module is used to drive the top anchor module 200 and/or the bottom anchor module 300 to rotate the seat 100 by a preset angle when there is a risk of collision of the vehicle. The control module may control the top anchor module 200 and/or the bottom anchor module 300 to adjust the orientation of the seat 100 prior to a crash such that the seat 100 can be rotated to a particular position in different crash orientations such that the seat belt is effectively acting on the occupant's body.

Optionally, the environment sensing and risk pre-judging module includes a road environment sensing unit and a risk pre-judging unit, where the road environment sensing unit may be a camera, a distance sensor, a radar, and other components, and may obtain parameters such as a distance between the vehicle and surrounding obstacles, a speed of the obstacles, and a running direction of the obstacles. The risk pre-judging unit can judge whether the vehicle has collision risk or not through modeling and calculation. The control module is a PLC (Programmable Logic Controller ).

As shown in fig. 10, the passenger sits in the seat and firstly performs comfort adjustment, at this stage, the passenger can control the seat independently or by a control module, and during driving, the passenger can continuously control and adjust the comfort. When the vehicle is started, the vehicle estimates the running risk in real time after sensing the running environment of the vehicle through the environment sensing and risk pre-judging module. And when the risk reaches a certain threshold (the threshold can be parameters such as the speed of a vehicle, the distance from an obstacle and the like), an early warning signal is sent out. At this time, the control module has obtained the position information of the seat 100, and can determine whether adjustment is required according to the risk level, if so, the position of the seat 100 is adjusted to enter or approach the safety range before the collision, and the seat is locked after the adjustment is completed. If the vehicle stops after the vehicle avoids the risk through deceleration or turning, the passenger can leave the seat, otherwise, the vehicle risk judgment is continued.

In some embodiments of the present invention, as shown in fig. 2-5, a top anchor module 200 includes: a top fixing member 210, a top rotating member 220, a winding member 230, and a first driving member 240; the top rotating member 220 is rotatably provided on the top fixing member 210; the winding member 230 is rotatably disposed on the top rotating member 220 and serves to wind the second end of the connection module 400; the first driving member 240 is configured to drive the winding member 230 to rotate so as to wind and unwind the second end of the connection module 400. The first driving member 240 is used for providing a force for driving the seat 100 to move forward in a straight line to the top anchor module 200, and the top anchor module 200 can drive the bottom anchor module 300 to move in a straight line during tightening of the connection module 400, i.e., the top anchor module 200 and the bottom anchor module 300 share a force for driving the seat 100 to move forward in a straight line.

Optionally, bearings are provided between the top mount 210 and the top turn 220, which facilitate sliding of the top turn 220 within the top mount 210. Alternatively, the outer race of the bearing is coupled to the top mount 210 and the inner race of the bearing is coupled to the top turn 220. The top mount 210 may be secured to the roof of the vehicle by screws, welding, or the like. Optionally, as shown in fig. 3-5, the top anchor module 200 further includes: the fixing member 250, the fixing member 250 is used to fix the rolling member 230 and the first driving member 240 to the top rotating member 220.

In some embodiments of the present invention, as shown in fig. 5, the first driving member 240 includes: a first motor 241, a first bevel gear 242, a second bevel gear 243, a first worm 244, a first worm wheel 245; the first motor 241 is fixedly disposed on the top rotating member 220; the first bevel gear 242 is provided on the output shaft of the first motor 241; a second bevel gear 243 rotatably provided on the top rotary member 220 and engaged with the first bevel gear 242, wherein the second bevel gear 243 is perpendicular to the axis of the first bevel gear 242; the first worm 244 is coaxially connected with the second bevel gear 243; a first worm wheel 245 is provided on the retractor 230 and is in engagement with the first worm 244. When the first motor 241 is operated, the first bevel gear 242 rotates to further drive the second bevel gear 243 to rotate, the first worm 244 also rotates to drive the first worm wheel 245 to rotate, and the winding member 230 rotates under the rotation of the first worm wheel 245, so as to further realize winding and unwinding of the connection module 400. The first driving piece 240 with the structure has the characteristic of compact structure, the first worm 244 and the first worm wheel 245 can form a self-locking structure, and locking at any position can be realized.

Optionally, the first motor 241 may be fixed on the fixing member 250 by using a screw or welding, etc., and the first motor 241 may be electrically connected to a control module, where the control module is used to control the on/off of the first motor 241, so as to control the retraction length of the connection module 400. Two first ear plates are arranged on the fixing piece 250 along the axial direction of the output shaft of the first motor 241 at intervals, the rolling piece 230 is columnar and is rotatably arranged between the two first ear plates, and one end of the rolling piece 230 penetrates out of one first ear plate to be connected with the first worm wheel 245. Two second lugs are arranged on the fixing piece 250 at intervals along the axial direction of the first worm 244, the first worm 244 is rotatably arranged between the two second lugs, and one end of the first worm 244 penetrates out of one second lug to be connected with the second bevel gear 243.

In some embodiments of the present invention, as shown in fig. 3, 6 and 7, the bottom anchor module 300 includes: a mounting base 111 and a second driving member 310 disposed between the mounting base 111 and the floor 110 of the seat 100; the second driving member 310 is used to drive the seat 100 to rotate relative to the mounting base 111. The bottom anchor module 300 and the top anchor module 200 share a rotational force that drives the bottom anchor module 300 to rotate, and the bottom anchor module 300 drives the top anchor module 200 to rotate during rotation.

Alternatively, as shown in fig. 7, the second driving member 310 includes: the second motor 311 fixedly provided on the mount 111, the second worm 312 provided on an output shaft of the second motor 311 and rotatably provided on the mount 111, the second worm wheel engaged with the second worm 312 and rotatably provided on the mount 111, the first gear 313 engaged with the second worm wheel and rotatably provided on the mount 111, and the second gear 314 engaged with the first gear 313 and fixedly provided on the base plate 110. When the second motor 311 is operated, the second worm 312 rotates to drive the second worm wheel to rotate, and the first gear 313 also rotates accordingly, because the second gear 314 is fixed on the base plate 110, the second gear 314 rotates relative to the mounting base 111 under the meshing force of the first gear 313, and because the second gear 314 is fixed on the base plate 110, the seat 100 rotates relative to the mounting base 111. Of course, the mounting base 111 may be mounted to other position adjustment mechanisms of the seat 100 (e.g., adjustment mechanisms for the overall front-to-rear position of the seat 100). The second driving member 310 with the structure has the characteristic of compact structure, and the second worm 312 and the second worm wheel can form a self-locking structure, so that the locking at any position can be realized, and the bottom rotating member 330 can be rotated to any position to stop. The second motor 311 may be electrically connected to a control module, where the control module is configured to control the on/off of the second motor 311, thereby controlling the rotation angle of the seat 100.

In some embodiments of the present invention, as shown in fig. 3, the seat 100 includes: a floor 110, a seatback 120, and a seat cushion 130 (see fig. 8); the vehicle seat structure further includes: a cushion adjustment module 500; the cushion adjustment module 500 includes: a third motor 510 provided on the base plate 110, a third gear 520 provided on an output shaft of the third motor 510, a fourth gear 530 engaged with the third gear 520, a screw 540 coaxially connected with the fourth gear 530, and a screw nut 550 provided on the screw 540, wherein the screw nut 550 is connected with the seat cushion 130. When the third motor 510 is operated, the third gear 520 rotates to drive the fourth gear 530 to rotate, the screw 540 rotates along with it, and the screw nut 550 drives the cushion 130 to move linearly. The position of the cushion 130 can be adjusted under different collision conditions, so as to achieve the purposes of adjusting the posture of the passengers and reducing the injury of the passengers.

Optionally, the lead screw nut 550 is an elongated structure. As shown in fig. 9, both ends of the lead screw nut 550 are connected to the seat cushion 130 through support rods 560. The supporting rod 560 and the cushion 130 have an included angle greater than 0 ° therebetween, so that the screw nut 550 is prevented from self-locking, and the screw nut 550 is ensured to effectively adjust the position of the seat 100 under the operation of the third motor 510.

Optionally, the third motor 510 is electrically connected to a control module, and the control module is configured to control the on/off of the third motor 510, so as to control the sliding distance of the seat cushion 130 on the bottom plate 110.

Optionally, the angle between the seat back 120 and the base plate 110 is adjustable. Thus, the included angle between the seat back 120 and the bottom plate 110 can be adjusted under different collision conditions, so as to achieve the purposes of adjusting the posture of the occupant and reducing the injury of the occupant. Wherein, the included angle between the chair back 120 and the bottom plate 110 can be adjusted by a motor and other mechanisms. The motor and other structures may be electrically connected to a control module, which is used to control the on/off of the motor and other structures, so as to control the included angle between the chair back 120 and the bottom plate 110.

In some embodiments of the present invention, as shown in fig. 2, 11 and 12, the middle part of the connection module 400 is inserted into the limiting hole of the backrest 120 of the seat 100; the vehicle seat structure further includes: the bidirectional locking module 600, the bidirectional locking module 600 includes: a third driving member 610 disposed on the seat back 120, a spindle 620 rotatably disposed in the limiting hole, and a locking member 630 disposed in a groove 620a of the spindle 620; the third driving member 610 is used to drive the spindle 620 to rotate in a first direction to push the locking member 630 to move to the outside of the groove 620a until the middle portion of the connection module 400 is pressed into the limiting hole, or to drive the spindle 620 to rotate in a second direction opposite to the first direction and push the locking member 630 back into the groove 620a by the tension of the connection module 400 to release the connection module 400.

Optionally, a limiting aperture is provided in the top of the seatback 120 (see fig. 2) head rest. The locking elements 630 may have a plurality (e.g., 2) of rod-shaped structures (see fig. 12), which are arranged side by side along the circumferential direction of the spindle 620, and each of which has an outer diameter greater than the depth of the groove 620a, so that the spindle 620 can be ensured to push the locking elements 630 to move out of the groove 620a during the rotation in the first direction.

Alternatively, as shown in fig. 12, the third driving member 610 includes: a fifth motor 611, a third bevel gear 612, a fourth bevel gear 613, a third worm 614, and a third worm gear 615; the third bevel gear 612 is disposed on the output shaft of the fifth motor 611; the fourth conical gear 613 meshes with the third conical gear 612, wherein the fourth conical gear 613 is perpendicular to the axis of the third conical gear 612; the third worm 614 is coaxially connected with the fourth bevel gear 613; the third worm gear 615 is coaxially coupled to the spindle 620 and is meshed with the third worm 614. When the fifth motor 611 operates, the third bevel gear 612 drives the fourth bevel gear 613 to rotate, the third worm 614 rotates, the third worm wheel 615 rotates under the action of the third worm 614, and the spindle 620 rotates. It will be appreciated that the third worm 614 is rotatably disposed on the seat 100.

Optionally, the fifth motor 611 is electrically connected to a control module, and the control module is configured to control on/off of the fifth motor 611 and control steering of the fifth motor 611, so as to control whether to lock the middle portion of the connection module 400.

Another embodiment of the present invention provides a vehicle including a vehicle seat structure as described in any one of the above.

As one example, the vehicle may be an unmanned vehicle.

As described above, the top anchor module 200 of the vehicle seat structure can synchronously drive the seat 100 to do linear motion or rotate around a vertical direction with the bottom anchor module 300 on the premise of adjusting the inclination angle of the seat back 120 of the seat 100, so that a force transmission path can be increased in the collision process, that is, a path for transmitting inertial force to the roof is increased, and the requirements on the recliner of the seat 100 and the rigidity of the seat back 120 are reduced, thereby reducing the cost and the quality of the seat 100. In addition, the vehicle seat structure also has the characteristics of simple structure and low preparation cost.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A vehicle seat structure, characterized in that the vehicle seat structure comprises: a seat (100), a restraint module, a top anchor module (200), a bottom anchor module (300), and a connection module (400);

the upper anchor point and the lower anchor point of the constraint module are connected with the seat (100);

the connecting module (400) is made of flexible materials, a first end of the connecting module (400) is fixedly connected with the chair back (120) of the chair (100), a second end of the connecting module is wound on the top anchoring module (200), and the first end and the second end of the connecting module (400) are distributed relatively;

the top anchoring module (200) and the bottom anchoring module (300) are used for synchronously driving the seat (100) to rotate around the vertical direction, and the top anchoring module (200) is also used for retracting the second end of the connecting module (400) so as to adjust the inclination angle of the chair back (120);

wherein the top anchor module (200) comprises: a top mount (210); a top rotating member (220) rotatably provided on the top fixing member (210); a retractor (230) rotatably disposed on the top rotator (220) and adapted to wind around a second end of the connection module (400); and the first driving piece (240) is used for driving the rolling piece (230) to rotate so as to roll and retract the second end of the connecting module (400).

2. The vehicle seat structure according to claim 1, characterized in that the vehicle seat structure further comprises: the environment sensing and risk pre-judging module is used for acquiring road environment information of vehicle driving and judging whether collision risk exists on the vehicle or not based on the road environment information;

the control module is used for driving the top anchoring module (200) and/or the bottom anchoring module (300) to drive the seat (100) to rotate by a preset angle when the collision risk exists in the vehicle.

3. The vehicle seat structure according to claim 1, characterized in that the first drive member (240) includes: a first motor (241) fixedly disposed on the top rotating member (220);

a first bevel gear (242) provided on an output shaft of the first motor (241);

a second bevel gear (243) rotatably disposed on the top rotary member (220) and engaged with the first bevel gear (242), wherein the second bevel gear (243) is perpendicular to the axis of the first bevel gear (242);

a first worm (244) coaxially connected to the second bevel gear (243);

a first worm wheel (245) disposed on the retractor (230) and engaged with the first worm (244).

4. A vehicle seating structure according to any one of claims 1-3, wherein the bottom anchor module (300) comprises: a mounting base (111) and a second driving element (310) arranged between the mounting base (111) and a bottom plate (110) of the seat (100);

the second driving member (310) is used for driving the seat (100) to rotate relative to the mounting seat (111).

5. The vehicle seat structure according to claim 4, characterized in that the second driving member (310) includes: the device comprises a mounting seat (111), a second motor (311) fixedly arranged on the mounting seat (111), a second worm (312) arranged on an output shaft of the second motor (311) and rotatably arranged on the mounting seat (111), a second worm wheel meshed with the second worm (312) and rotatably arranged on the mounting seat (111), a first gear (313) meshed with the second worm wheel and rotatably arranged on the mounting seat (111), and a second gear (314) meshed with the first gear (313) and fixedly arranged on the bottom plate (110).

6. A vehicle seat arrangement according to any one of claims 1-3, characterized in that the seat (100) comprises: a floor (110), a seatback (120), and a seat cushion (130);

the vehicle seat structure further includes: a cushion adjustment module (500), the cushion adjustment module (500) comprising: the device comprises a third motor (510) arranged on the bottom plate (110), a third gear (520) arranged on an output shaft of the third motor (510), a fourth gear (530) meshed with the third gear (520), a screw (540) coaxially connected with the fourth gear (530) and a screw nut (550) arranged on the screw (540), wherein the screw nut (550) is connected with the seat cushion (130).

7. A vehicle seat structure according to any one of claims 1-3, characterized in that the middle part of the connection module (400) is arranged in a limit hole of the seat back (120) of the seat (100) in a penetrating way;

the vehicle seat structure further includes: a bi-directional locking module (600), the bi-directional locking module (600) comprising: a third driving part (610) arranged on the chair back (120), a mandrel (620) rotatably arranged in the limiting hole and a locking part (630) positioned in a groove (620 a) of the mandrel (620);

the third driving member (610) is used for driving the mandrel (620) to rotate along a first direction to push the locking member (630) to move towards the outside of the groove (620 a) until the middle part of the connecting module (400) is pressed in the limiting hole, or driving the mandrel (620) to rotate along a second direction opposite to the first direction and pushing the locking member (630) back into the groove (620 a) through the tension of the connecting module (400) so as to release the connecting module (400).

8. The vehicle seat structure according to claim 7, characterized in that the third drive member (610) includes: a fifth motor (611);

a third bevel gear (612) disposed on an output shaft of the fifth motor (611);

a fourth bevel gear (613) in mesh with the third bevel gear (612), wherein the fourth bevel gear (613) is perpendicular to the axis of the third bevel gear (612);

a third worm (614) coaxially connected to the fourth bevel gear (613);

and a third worm wheel (615) coaxially connected with the core shaft (620) and meshed with the third worm (614).

9. A vehicle, characterized in that it comprises a vehicle seat structure as claimed in any one of claims 1-8.