Zero-gravity seat energy absorption structure and automobile seat

Abstract

The invention provides a zero-gravity seat energy absorption structure and an automobile seat, and relates to the technical field of automobile seat equipment. The zero-gravity seat energy-absorbing structure comprises a backrest connecting plate, a seat base, a backrest energy-absorbing piece and a seat cushion energy-absorbing piece, the backrest energy-absorbing piece comprises a follow-up lock assembly and a trigger assembly, the follow-up lock assembly comprises a spring bolt plate and a locking claw piece, an energy-absorbing transverse groove hole is formed in the backrest connecting plate, an energy-absorbing arc-shaped groove hole is formed in the seat base, the extending directions of the energy-absorbing transverse groove hole and the energy-absorbing arc-shaped groove hole intersect, an energy-absorbing mounting hole is formed in the spring bolt plate, and the trigger assembly is arranged in the energy-absorbing mounting hole. The spring bolt plate, the backrest connecting plate and the seat base are fixed together through connecting bolts, and the connecting bolts can penetrate through the energy-absorbing mounting holes, the energy-absorbing transverse slotted holes and the energy-absorbing arc-shaped slotted holes; the spring bolt plate and the locking claw piece are each provided with a first pivot joint hole, and the first pivot joint holes are fixed to the seat base through bolts. The technical effect of improving the safety of the zero-gravity seat during vehicle collision is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive seat equipment, and more particularly, to an energy absorption structure for a zero-gravity seat and an automotive seat. Background Art

[0002] With the rapid development of science and technology, various new technologies in the automotive industry have emerged like mushrooms after a spring rain, which also makes people put forward higher and higher requirements for the comfort and safety of vehicle rides. Zero-gravity seats, with their extremely high comfort, have developed rapidly in the industry and have been widely used, but there are gaps in the safety performance of zero-gravity seats.

[0003] In the zero-gravity mode, the passenger is in a lying position, and the adjustment range of the seat belt is limited. When the vehicle undergoes a high-speed collision, the magnitude and direction of the binding force of the seat belt on the body are extremely different from those in the normal sitting position, and problems such as submarining are likely to occur, resulting in a much higher accident mortality rate and a much higher severity level of injuries in the zero-gravity mode than in the normal sitting position. Therefore, it is very urgent to improve the driving safety of zero-gravity seats in the high-speed mode. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy absorption structure for a zero-gravity seat and an automotive seat to alleviate the technical problem of low safety of zero-gravity seats during vehicle collisions in the prior art.

[0005] In a first aspect, an embodiment of the present invention provides an energy absorption structure for a zero-gravity seat, including a backrest connecting plate, a seat base, a backrest energy absorption member, and a seat cushion energy absorption member;

[0006] One end of the backrest connecting plate is pivotally connected to the seat base, and the other end is pivotally connected to the backrest frame through an angle adjuster. The backrest energy absorption member is disposed between the backrest connecting plate and the seat base, and the seat cushion energy absorption member is disposed at the front end of the seat base;

[0007] The backrest energy absorption member includes a follow-up lock assembly and a trigger assembly. The follow-up lock assembly includes a lock tongue plate and a lock claw member. An energy absorption transverse slot hole is formed on the backrest connecting plate, and an energy absorption arc-shaped slot hole is formed on the seat base. The extending directions of the energy absorption transverse slot hole and the energy absorption arc-shaped slot hole intersect. An energy absorption mounting hole is formed on the lock tongue plate. The lock tongue plate, the backrest connecting plate, and the seat base are fixed together by a connecting bolt, and the connecting bolt can pass through the energy absorption mounting hole, the energy absorption transverse slot hole, and the energy absorption arc-shaped slot hole;

[0008] Both the lock tongue plate and the lock claw member are provided with a first pivot hole, and the first pivot hole is fixed to the seat base by a bolt;

[0009] The triggering component is arranged on the seat base, and the triggering component is in transmission connection with the locking claw component.

[0010] Combined with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Wherein, a second pivot hole and a third pivot hole for connecting the seat back frame are formed on the backrest connecting plate. The second pivot hole and the energy-absorbing transverse slot hole are located below the third pivot hole, and the energy-absorbing transverse slot hole is located between the second pivot hole and the follow-up lock assembly.

[0011] Combined with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Wherein, both the energy-absorbing transverse slot hole and the energy-absorbing arc-shaped slot hole include a circular slot hole and a straight slot hole;

[0012] The diameter of the circular slot hole is greater than the slot width of the straight slot hole, and the straight slot hole is in interference fit with the connecting bolt.

[0013] Combined with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Wherein, the follow-up lock assembly further includes a mounting guard plate. Both the lock tongue plate and the locking claw component are pivotally connected to the mounting guard plate through the first pivot hole;

[0014] The lock tongue plate is provided with a first lock tongue, a second lock tongue and a third lock tongue from top to bottom. The locking claw component includes an upper locking claw and a lower locking claw. The upper locking claw is clamped between the first lock tongue and the second lock tongue. The lower locking claw is clamped between the second lock tongue and the third lock tongue. The lower locking claw is in transmission connection with the triggering component;

[0015] A reset torsion spring is arranged between both the upper locking claw and the lower locking claw and the mounting guard plate.

[0016] Combined with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Wherein, a thrust limiting plate is arranged at the bottom of the seat base. A thrust clamping groove adapted to the thrust limiting plate is formed on the lower locking claw. After the triggering component drives the lower locking claw to rotate, the thrust clamping groove is clamped with the thrust limiting plate, so that the lower locking claw is disengaged from between the second lock tongue and the third lock tongue.

[0017] Combined with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Wherein, the triggering component includes a gunpowder triggering piece and a cable;

[0018] The gunpowder triggering piece is installed on the seat base, and the gunpowder triggering piece is in transmission connection with the lower locking claw through the cable.

[0019] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Among them, the above-mentioned seat cushion energy absorption member includes a lifting driving member, a lifting plate, and an energy absorption and collapse plate. One end of the seat base is pivotally connected to the seat basin, one end of the lifting plate is pivotally connected to the seat base, and the other end is pivotally connected to the energy absorption and collapse plate through a stepped bolt. The end of the energy absorption and collapse plate away from the energy absorption and collapse plate is pivotally connected to the seat basin. The seat base, the seat basin, the lifting plate, and the energy absorption and collapse plate form a multi-link structure;

[0020] The lifting driving member is arranged at the other end of the seat base, and the lifting driving member is in transmission connection with the lifting plate.

[0021] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Among them, the above-mentioned lifting driving member adopts a driving motor, and a driving gear is arranged at the output end of the driving motor, and an arc-shaped toothed plate is arranged on the lifting plate.

[0022] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect. Among them, a lower cross tube is arranged on the above-mentioned seat base, one end of the lifting plate is pivotally connected to the lower cross tube, and a first connection hole for connecting with the energy absorption and collapse plate is opened at the other end;

[0023] An upper cross tube is arranged on the seat basin, one end of the energy absorption and collapse plate is pivotally connected to the upper cross tube, and the other end is connected to the lifting plate through the stepped bolt;

[0024] A cross tube pivot connection hole, a second connection hole, and an energy absorption connection hole are opened on the energy absorption and collapse plate. The cross tube pivot connection hole is used for pivotally connecting with the upper cross tube, the second connection hole is used for connecting with the lifting plate, and a weakening wall is arranged between the energy absorption connection hole and the second connection hole;

[0025] A plurality of collapse energy absorption toothed plates are arranged in the energy absorption connection hole.

[0026] In the second aspect, an embodiment of the present invention provides an automobile seat, including the zero-gravity seat energy absorption structure.

[0027] Beneficial effects:

[0028] An energy absorption structure for a zero-gravity seat according to an embodiment of the present invention includes a backrest connecting plate, a seat base, a backrest energy absorption member, and a seat cushion energy absorption member; one end of the backrest connecting plate is pivotally connected to the seat base, and the other end is pivotally connected to the backrest frame through an angle adjuster. The backrest energy absorption member is disposed between the backrest connecting plate and the seat base, and the seat cushion energy absorption member is disposed at the front end of the seat base; the backrest energy absorption member includes a follow-up lock assembly and a trigger assembly. The follow-up lock assembly includes a lock tongue plate and a lock claw member. An energy absorption transverse slot hole is formed on the backrest connecting plate, and an energy absorption arc-shaped slot hole is formed on the seat base. The extending directions of the energy absorption transverse slot hole and the energy absorption arc-shaped slot hole intersect. An energy absorption mounting hole is provided on the lock tongue plate. The lock tongue plate, the backrest connecting plate, and the seat base are fixed together by a connecting bolt, and the connecting bolt can pass through the energy absorption mounting hole, the energy absorption transverse slot hole, and the energy absorption arc-shaped slot hole; first pivot holes are provided on both the lock tongue plate and the lock claw member, and the first pivot holes are fixed to the seat base by bolts; the trigger assembly is disposed on the seat base and is in transmission connection with the lock claw member.

[0029] Specifically, when a frontal collision occurs when the vehicle seat is in the zero-gravity mode, the seat back swings forward, and the seat back drives the backrest connecting plate to rotate clockwise. When the backrest connecting plate rotates, it will press the connecting bolt, causing the connecting bolt to slide in the energy absorption transverse slot hole of the backrest connecting plate and the energy absorption arc-shaped slot hole of the seat base, thereby absorbing and consuming the impact. At the same time, the trigger assembly is triggered to quickly drive the lock claw member, so that the backrest connecting plate can drive the lock tongue plate to rotate. In addition, the backrest energy absorption member is disposed between the backrest connecting plate and the seat base, and the seat cushion energy absorption member is disposed at the front end of the seat base. By providing both the backrest energy absorption member and the seat cushion energy absorption member, the impact force of the vehicle seat during a frontal collision of the vehicle can be absorbed, reducing the harm to the user's body.

[0030] An embodiment of the present invention provides a vehicle seat, including an energy absorption structure for a zero-gravity seat. The vehicle seat has the above advantages compared with the prior art, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic diagram of the installation of the energy absorption structure for a zero-gravity seat provided by an embodiment of the present invention on a vehicle seat;

[0033] Figure 2 It is an internal structure schematic diagram of the backrest energy absorption member in the energy absorption structure for a zero-gravity seat provided by an embodiment of the present invention;

[0034] Figure 3 Internal schematic diagram of the backrest energy absorber in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0035] Figure 4 Schematic diagram of the backrest connecting plate in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0036] Figure 5 Partial schematic diagram of the seat base in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0037] Figure 6 Schematic diagram of the follow-up lock assembly in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0038] Figure 7 Internal schematic diagram of the follow-up lock assembly in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0039] Figure 8 Internal structure schematic diagram of the follow-up lock assembly in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0040] Figure 9 Schematic diagram of the seat cushion energy absorber in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0041] Figure 10 Structure schematic diagram of the seat cushion energy absorber in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0042] Figure 11 Internal structure schematic diagram of the seat cushion energy absorber in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0043] Figure 12 Schematic diagram of the energy absorption collapse plate of the seat cushion energy absorber in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention;

[0044] Figure 13 Cross-sectional view of the stepped bolt of the energy absorption collapse plate of the seat cushion energy absorber in the zero-gravity seat energy absorption structure provided by the embodiment of the present invention.

[0045] Icon:

[0046] 10 - Seat backrest frame; 20 - Backrest energy absorber; 30 - Seat cushion energy absorber;

[0047] 100 - Backrest connecting plate; 110 - Energy absorption transverse slot hole; 120 - Second pivot hole; 130 - Third pivot hole;

[0048] 200 - Seat base; 210 - Energy-absorbing arc-shaped slot holes; 211 - Round slot holes; 212 - Straight slot holes; 220 - Thrust limiting plate; 230 - Lower horizontal pipe; 240 - Seat basin; 241 - Upper horizontal pipe; 242 - Rear horizontal pipe;

[0049] 300 - Follow-up lock assembly; 301 - First pivot hole; 310 - Lock tongue plate; 311 - Energy-absorbing mounting holes; 312 - First lock tongue; 313 - Second lock tongue; 314 - Third lock tongue; 315 - Protective nut; 320 - Lock claw part; 321 - Upper lock claw; 322 - Lower lock claw; 323 - Return torsion spring; 324 - Thrust card slot; 330 - Connecting bolt; 340 - Installation guard plate;

[0050] 400 - Trigger assembly; 410 - Gunpowder trigger part; 420 - Cable;

[0051] 500 - Energy-absorbing and collapsing plate; 501 - Step bolt; 510 - Horizontal pipe pivot hole; 520 - Second connection hole; 530 - Energy-absorbing connection hole; 540 - Weakening wall; 550 - Collapsing and energy-absorbing toothed plate;

[0052] 600 - Lifting drive part; 610 - Driving gear; 620 - Lifting plate; 630 - Arc-shaped toothed plate. Detailed implementation manners

[0053] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0055] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless specifically defined otherwise.

[0056] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0058] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13As shown in the figure, this embodiment provides an energy-absorbing structure for a zero-gravity seat, including a backrest connecting plate 100, a seat base 200, a backrest energy-absorbing member 20, and a seat cushion energy-absorbing member 30; one end of the backrest connecting plate 100 is pivotally connected to the seat base 200, and the other end is pivotally connected to the backrest frame through an angle adjuster. The backrest energy-absorbing member 20 is arranged between the backrest connecting plate 100 and the seat base 200, and the seat cushion energy-absorbing member 30 is arranged at the front end of the seat base 200; the backrest energy-absorbing member 20 includes a follower lock assembly 300 and a trigger assembly 400. The follower lock assembly 300 includes a lock tongue plate 310 and a lock claw member 320. An energy-absorbing transverse slot hole 110 is formed on the backrest connecting plate 100, and an energy-absorbing arc-shaped slot hole 210 is formed on the seat base 200. The extending directions of the energy-absorbing transverse slot hole 110 and the energy-absorbing arc-shaped slot hole 210 intersect. An energy-absorbing mounting hole 311 is arranged on the lock tongue plate 310. The lock tongue plate 310, the backrest connecting plate 100, and the seat base 200 are fixed together by a connecting bolt 330. The connecting bolt 330 can pass through the energy-absorbing mounting hole 311, the energy-absorbing transverse slot hole 110, and the energy-absorbing arc-shaped slot hole 210; both the lock tongue plate 310 and the lock claw member 320 are provided with a first pivot hole 301, and the first pivot hole 301 is fixed to the seat base 200 by a bolt; the trigger assembly 400 is arranged on the seat base 200, and the trigger assembly 400 is in transmission connection with the lock claw member 320.

[0059] Specifically, when a frontal collision occurs when the vehicle seat is in the zero-gravity mode, the seat back swings forward, driving the backrest connecting plate 100 to rotate clockwise. When the backrest connecting plate 100 rotates, it will press the connecting bolt 330, causing the connecting bolt 330 to slide in the energy-absorbing transverse slot hole 110 of the backrest connecting plate 100 and the energy-absorbing arc-shaped slot hole 210 of the seat base 200, thereby absorbing and consuming the impact. At the same time, the trigger assembly 400 is triggered to quickly drive the lock claw member 320, so that the backrest connecting plate 100 can drive the lock tongue plate 310 to rotate. In addition, the backrest energy-absorbing member 20 is arranged between the backrest connecting plate 100 and the seat base 200, and the seat cushion energy-absorbing member 30 is arranged at the front end of the seat base 200. By arranging the backrest energy-absorbing member 20 and the seat cushion energy-absorbing member 30, the impact force of the vehicle seat during a frontal collision of the vehicle can be absorbed, reducing the harm to the user's body.

[0060] Among them, a protective nut 315 is arranged in the energy-absorbing mounting hole 311, and the connecting bolt 330 is sleeved on the protective nut 315. Through the arrangement of the protective nut 315, the connection stability between the connecting bolt 330 and the lock tongue plate 310 can be ensured, avoiding the tearing of the lock tongue plate 310 caused by excessive impact force.

[0061] The trigger assembly 400 includes a gunpowder trigger 410 and a cable 420; the gunpowder trigger 410 is mounted on the seat base 200, and the gunpowder trigger 410 is in transmission connection with the lower locking claw 322 via the cable 420. When the vehicle collides head-on, the gunpowder trigger 410 is triggered, so that the gunpowder trigger 410 can quickly pull the cable 420, so that the cable 420 can pull the locking claw 320, thereby completing the locking of the bolt plate 310, so that the bolt plate 310 can rotate relative to the locking claw 320.

[0062] See also Figure 1 - Figure 13 As shown, in an optional scheme of the present embodiment, a second pivot hole 120 and a third pivot hole 130 for connecting the seat back frame 10 are provided on the backrest connecting plate 100, the second pivot hole 120 and the energy absorbing transverse groove hole 110 are located below the third pivot hole 130, and the energy absorbing transverse groove hole 110 is located between the second pivot hole 120 and the follower lock assembly 300.

[0063] Specifically, the backrest connecting plate 100 is connected to the seat back frame 10 via the third pivot hole 130, and a recliner is provided at the third pivot hole 130. When the vehicle collides, the recliner fixes the backrest connecting plate 100 and the seat back frame 10 so that they are relatively fixed. The backrest connecting plate 100 is pivoted to the seat base 200 via the second pivot hole 120, so that the seat back frame 10 drives the backrest connecting plate 100 to rotate along the second pivot hole 120, and the connecting bolt 330 can slide in the energy absorbing transverse slot hole 110 and the energy absorbing arc slot hole 210.

[0064] See also Figure 1 - Figure 13 As shown, in the optional scheme of this embodiment, both the energy absorbing transverse slot hole 110 and the energy absorbing arc slot hole 210 include a circular slot hole 211 and a straight slot hole 212; the diameter of the circular slot hole 211 is larger than the slot width of the straight slot hole 212, and the straight slot hole 212 is interference fit with the connecting bolt 330.

[0065] Specifically, when the seat is in normal use, the connecting bolt 330 is passed through the circular slot hole 211 of both the energy absorbing transverse slot hole 110 and the energy absorbing arc slot hole 210, the connecting bolt 330 is over-fitted with the circular slot hole 211, and the connecting bolt 330 locks the backrest connecting plate 100, the seat base 200 and the locking tongue plate 310, thereby ensuring the normal use of the seat back frame 10 and the seat basin 240.

[0066] In addition, when a frontal collision occurs in the vehicle, the connecting bolt 330 will be impacted into the straight slot hole 212 of both the energy absorbing transverse slot hole 110 and the energy absorbing arc slot hole 210. The straight slot hole 212 and the connecting bolt 330 are interference fit, so that when the connecting bolt 330 slides in the straight slot hole 212, the impact force can be converted into friction force and heat energy generated by the straight slot hole 212 being stretched open, thereby consuming the impact force and preventing the seat back from causing excessive impact damage to the user.

[0067] See also Figure 1 - Figure 13 As shown, in an optional solution of this embodiment, the follower lock assembly 300 further includes a mounting guard plate 340 , and both the lock tongue plate 310 and the lock claw member 320 are pivotally connected to the mounting guard plate 340 through the first pivot hole 301 .

[0068] Specifically, both the locking tongue plate 310 and the locking claw member 320 can be pivotally connected to the mounting guard plate 340 and mounted on the seat base 200 via the mounting guard plate 340 , so that both the locking tongue plate 310 and the locking claw member 320 can rotate relative to the seat base 200 .

[0069] See also Figure 1 - Figure 13 As shown, in an optional scheme of this embodiment, the lock tongue plate 310 is provided with a first lock tongue 312, a second lock tongue 313 and a third lock tongue 314 from top to bottom, and the lock claw member 320 includes an upper lock claw 321 and a lower lock claw 322, the upper lock claw 321 is clamped between the first lock tongue 312 and the second lock tongue 313, and the lower lock claw 322 is clamped between the second lock tongue 313 and the third lock tongue 314; the lower lock claw 322 is transmission connected to the trigger assembly 400.

[0070] A return torsion spring 323 is disposed between the upper locking claw 321 and the lower locking claw 322 and the mounting guard plate 340 .

[0071] Among them, a thrust limit plate 220 is set at the bottom of the seat base 200, and a thrust slot 324 that can be adapted to the thrust limit plate 220 is opened on the lower locking claw 322. After the trigger assembly 400 drives the lower locking claw 322 to rotate, the thrust slot 324 is engaged with the thrust limit plate 220 to make the lower locking claw 322 disengage from between the second lock tongue 313 and the third lock tongue 314.

[0072] When the locking pawl 321 is in the unlocking state, the locking pawl 322 is in the unlocking state, and the locking pawl 322 is locked in the unlocking state.

[0073] See also Figure 1 - Figure 13 As shown, in an optional scheme of the present embodiment, the seat cushion energy absorbing member 30 includes a lifting drive member 600, a lifting plate 620 and an energy absorbing crush plate 500, one end of the seat base 200 is pivotally connected to the seat basin 240, one end of the lifting plate 620 is pivotally connected to the seat base 200, and the other end is pivotally connected to the energy absorbing crush plate 500 through a step bolt 501, and one end of the energy absorbing crush plate 500 away from the energy absorbing crush plate 500 is pivotally connected to the seat basin 240, and the seat base 200, the seat basin 240, the lifting plate 620 and the energy absorbing crush plate 500 form a multi-link structure; the lifting drive member 600 is arranged on the other end of the seat base 200, and the lifting drive member 600 is transmission-connected to the lifting plate 620.

[0074] Specifically, when the seat is in zero-gravity mode and the vehicle has a front collision accident, the passenger will lean forward and press the seat basin 240. The front end of the seat basin 240 will rotate downward counterclockwise. At this time, the seat basin 240 will press the energy absorbing crush plate 500. The step bolts 501 on the energy absorbing crush plate 500 will crush the crush structure inside the energy absorbing crush plate 500, causing the front end height of the seat basin 240 to drop. At the same time, the energy absorbing crush plate 500 will press the lifting plate 620, causing the lifting plate 620 to reversely drive the lifting drive member 600 to reset, thereby causing the lifting plate 620 to rotate counterclockwise, causing the front end height of the seat basin 240 to drop. Through such a setting, the impact force of the human body on the seat basin 240 is consumed, the pressure between the human body and the seat basin 240 is reduced, and the damage to the human body is alleviated.

[0075] A rear transverse tube 242 is disposed on the seat basin 240 , and the seat base 200 is pivotally connected to the rear transverse tube 242 .

[0076] See also Figure 1 - Figure 13As shown, in an alternative solution of this embodiment, the lifting driving member 600 is a driving motor, and a driving gear 610 is provided at the output end of the driving motor. An arc-shaped toothed plate 630 is provided on the lifting plate 620.

[0077] Specifically, when the driving motor rotates, it can drive the lifting plate to rotate clockwise or counterclockwise, so that the lifting plate 620 can drive the front end of the seat basin 240 to lift or lower.

[0078] See Figure 1 - Figure 13 As shown, in an alternative solution of this embodiment, a lower cross tube 230 is provided on the seat base 200. One end of the lifting plate 620 is pivotally connected to the lower cross tube 230, and a first connection hole for connecting with the energy-absorbing and collapsible plate 500 is provided at the other end.

[0079] Among them, an upper cross tube 241 is provided on the seat basin 240. One end of the energy-absorbing and collapsible plate 500 is pivotally connected to the upper cross tube 241, and the other end is connected to the lifting plate 620 through a step bolt 501.

[0080] See Figure 1 - Figure 13 As shown, in an alternative solution of this embodiment, a cross tube pivot hole 510, a second connection hole 520, and an energy-absorbing connection hole 530 are provided on the energy-absorbing and collapsible plate 500; the cross tube pivot hole 510 is used for pivotal connection with the upper cross tube 241, and the second connection hole 520 is used for connection with the lifting plate 620; a weakened wall 540 is provided between the energy-absorbing connection hole 530 and the second connection hole 520.

[0081] Among them, a plurality of collapsible energy-absorbing toothed plates 550 are provided in the energy-absorbing connection hole 530.

[0082] Among them, the plurality of collapsible energy-absorbing toothed plates 550 are symmetrically arranged in the energy-absorbing connection hole 530.

[0083] Among them, the energy-absorbing connection hole 530 is in a fishbone shape.

[0084] Specifically, the energy-absorbing and collapsible plate 500 is provided with a transverse pipe pivot hole 510, a second connection hole 520, and an energy-absorbing connection hole 530. A weakening wall 540 is provided between the energy-absorbing connection hole 530 and the second connection hole 520. When the vehicle seat is operating in the zero-gravity mode normally, the step bolt 501 in the first connection hole of the second connection hole 520 of the energy-absorbing and collapsible plate 500 and the lifting plate 620 cannot break through the weakening wall 540, enabling the normal use of the vehicle seat. When a frontal collision occurs to the vehicle, the seat basin 240 is violently impacted by the user. The seat basin 240 will impact the energy-absorbing and collapsible plate 500. At this time, the step bolt 501 will impact and break the weakening wall 540 between the energy-absorbing connection hole 530 and the second connection hole 520. Then, the step bolt 501 will enter the energy-absorbing connection hole 530, and the step bolt 501 will impact a plurality of collapsible energy-absorbing tooth plates 550 in the energy-absorbing connection hole 530, thereby causing the front end height of the seat basin 240 to decrease. During the descent process, the impact energy of the human body on the seat basin 240 is absorbed, the pressure between the human body and the seat basin 240 is reduced, and the injury suffered by the human body is reduced.

[0085] Moreover, when the step bolt 501 impacts a plurality of collapsible energy-absorbing tooth plates 550, the energy-absorbing and collapsible plate 500 will press the lifting plate 620 to rotate. The rotation of the lifting plate 620 will drive the lifting drive motor to rotate, thereby further reducing the height of the seat basin 240, further reducing the pressure between the human body and the seat basin 240, and reducing the injury suffered by the human body.

[0086] Specifically, when the zero-gravity seat energy-absorbing structure provided in this embodiment is in use and the vehicle collides and the zero-gravity seat is in the high-comfort mode;

[0087] Step 1: The PLP detonates, the seat belt tightens, preventing the passenger from lunging forward and diving downward;

[0088] Step 2: The seat cushion airbag detonates, and the airbag inflates and expands, preventing the passenger from lunging forward and diving downward;

[0089] Step 3: The retractor detonates, the seat belt tightens, preventing the passenger's torso from lunging forward;

[0090] Step 4: The trigger detonates, unlocking the follower lock assembly 300 in the seat back energy-absorbing member 20;

[0091] Step 5: The energy-absorbing and collapsible plate 500 of the seat cushion energy-absorbing member 30 collapses and absorbs the impact energy, causing the seat to overturn forward as a whole and the seat cushion frame assembly to quickly return to the normal mode;

[0092] Step 6: At the same time, the follower lock assembly 300 in the seat back energy-absorbing member 20 opens the lower locking claw 322 in Step 4. The thrust limiting plate 220 locks the lower locking claw 322, and the locking tongue plate 310 is driven by the seat back, causing the seat back frame assembly to rotate downward to the normal mode.

[0093] This embodiment provides an automotive seat, including a zero-gravity seat energy absorption structure.

[0094] Specifically, the automotive seat provided in this embodiment has the advantages of the above zero-gravity seat energy absorption structure compared with the prior art, which will not be elaborated here.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A zero-gravity seat energy absorption structure, characterized in that: include: A backrest connecting plate (100), a seat base (200), a backrest energy absorbing member (20) and a seat cushion energy absorbing member (30); One end of the backrest connecting plate (100) is pivotally connected to the seat base (200), and the other end is pivotally connected to the backrest frame via an angle adjuster; the backrest energy absorbing member (20) is arranged between the backrest connecting plate (100) and the seat base (200); and the seat cushion energy absorbing member (30) is arranged at the front end of the seat base (200); The backrest energy absorption member (20) comprises a follow-up lock assembly (300) and a trigger assembly (400), the follow-up lock assembly (300) comprises a lock tongue plate (310) and a lock claw member (320), the backrest connecting plate (100) is provided with an energy absorption transverse slot hole (110), the seat base (200) is provided with an energy absorption arc slot hole (210), the extension directions of the energy absorption transverse slot hole (110) and the energy absorption arc slot hole (210) intersect, the lock tongue plate (310) is provided with an energy absorption installation hole (311), the lock tongue plate (310), the backrest connecting plate (100) and the seat base (200) are fixed together by connecting bolts (330), and the connecting bolts (330) can pass through the energy absorption installation hole (311), the energy absorption transverse slot hole (110) and the energy absorption arc slot hole (210); The locking tongue plate (310) and the locking claw member (320) are both provided with a first pivot hole (301), and the first pivot hole (301) is fixed to the seat base (200) by means of bolts; The trigger assembly (400) is arranged on the seat base (200), and the trigger assembly (400) is transmission-connected to the locking claw member (320).

2. The zero-gravity seat energy absorption structure according to claim 1, characterized in that: The backrest connecting plate (100) is provided with a second pivot hole (120) and a third pivot hole (130) for connecting to the seat back frame (10); the second pivot hole (120) and the energy absorbing transverse slot hole (110) are located below the third pivot hole (130); and the energy absorbing transverse slot hole (110) is located between the second pivot hole (120) and the follower lock assembly (300).

3. The zero-gravity chair energy absorption structure according to claim 1, characterized in that: Both the energy absorbing transverse slot hole (110) and the energy absorbing arc slot hole (210) include a circular slot hole (211) and a straight slot hole (212); The diameter of the circular slot hole (211) is greater than the slot width of the straight slot hole (212), and the straight slot hole (212) and the connecting bolt (330) are interference fit.

4. The zero-gravity seat energy absorption structure according to claim 1, characterized in that: The follower lock assembly (300) further comprises a mounting guard plate (340), and both the locking tongue plate (310) and the locking claw member (320) are pivotally connected to the mounting guard plate (340) through the first pivot hole (301); The locking tongue plate (310) is provided with a first locking tongue (312), a second locking tongue (313) and a third locking tongue (314) from top to bottom, and the locking claw member (320) comprises an upper locking claw (321) and a lower locking claw (322), wherein the upper locking claw (321) is clamped between the first locking tongue (312) and the second locking tongue (313), and the lower locking claw (322) is clamped between the second locking tongue (313) and the third locking tongue (314), and the lower locking claw (322) is transmission-connected to the trigger assembly (400); A return torsion spring (323) is provided between the upper locking claw (321) and the lower locking claw (322) and the mounting guard plate (340).

5. The zero-gravity chair energy absorption structure according to claim 4, characterized in that: A thrust stop plate (220) is disposed at the bottom of the seat base (200), and a thrust stop slot (324) adapted to the thrust stop plate (220) is provided on the lower locking claw (322); after the trigger assembly (400) drives the lower locking claw (322) to rotate, the thrust stop slot (324) is engaged with the thrust stop plate (220), so that the lower locking claw (322) is disengaged from between the second locking tongue (313) and the third locking tongue (314).

6. The zero-gravity chair energy absorption structure according to claim 5, characterized in that: The trigger assembly (400) comprises a gunpowder trigger (410) and a cable (420); The gunpowder triggering component (410) is installed on the seat base (200), and the gunpowder triggering component (410) is transmission-connected to the lower locking claw (322) via the pull cable (420).

7. The zero-gravity chair energy absorption structure according to claim 1, characterized in that: The seat cushion energy absorbing member (30) comprises a lifting driving member (600), a lifting plate (620) and an energy absorbing crushing plate (500); one end of the seat base (200) is pivotally connected to the seat basin (240); one end of the lifting plate (620) is pivotally connected to the seat base (200); the other end of the lifting plate (620) is pivotally connected to the energy absorbing crushing plate (500) via a step bolt (501); one end of the energy absorbing crushing plate (500) away from the energy absorbing crushing plate (500) is pivotally connected to the seat basin (240); the seat base (200), the seat basin (240), the lifting plate (620) and the energy absorbing crushing plate (500) form a multi-link structure; The lifting drive member (600) is arranged on the other end of the seat base (200), and the lifting drive member (600) is transmission-connected to the lifting plate (620).

8. The zero-gravity chair energy absorption structure according to claim 7, characterized in that: The lifting drive member (600) adopts a driving motor, the output end of which is provided with a driving gear (610), and the lifting plate (620) is provided with an arc-shaped toothed plate (630).

9. The zero-gravity chair energy absorption structure according to claim 8, characterized in that: The seat base (200) is provided with a lower transverse tube (230), one end of the lifting plate (620) is pivotally connected to the lower transverse tube (230), and the other end is provided with a first connection hole for connecting with the energy absorbing collapse plate (500); An upper transverse tube (241) is provided on the seat basin (240); one end of the energy absorbing collapse plate (500) is pivotally connected to the upper transverse tube (241), and the other end is connected to the lifting plate (620) via the step bolt (501); The energy absorbing collapse plate (500) is provided with a transverse tube pivot hole (510), a second connection hole (520) and an energy absorbing connection hole (530); the transverse tube pivot hole (510) is used for pivoting with the upper transverse tube (241); the second connection hole (520) is used for connecting with the lifting plate (620); and a weakened wall (540) is provided between the energy absorbing connection hole (530) and the second connection hole (520); A plurality of crushing energy absorbing tooth plates (550) are arranged in the energy absorbing connection hole (530).

10. A car seat, characterized in that: The invention comprises the zero-gravity seat energy absorption structure as described in any one of claims 1 to 9.

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