Zero-gravity seat passive safety structure and automobile seat

Abstract

The invention provides a zero-gravity seat passive safety structure and an automobile seat, and relates to the technical field of automobile seat equipment. The zero-gravity seat passive safety structure comprises a backrest framework connecting plate, a seat cushion base, a backrest safety part and a seat cushion safety part. The backrest safety part comprises an energy-absorbing nut and a locking assembly, one end of the bottom of the backrest framework connecting plate is pivoted with the seat cushion base, the other end of the bottom of the backrest framework connecting plate is provided with the energy-absorbing nut, the seat cushion base is provided with an energy-absorbing sliding groove hole, the energy-absorbing nut is inserted into the energy-absorbing sliding groove hole, the seat cushion base is provided with an energy-absorbing block, and the energy-absorbing block is connected with the energy-absorbing nut; the locking assembly is arranged on the seat cushion base, the locking assembly is in transmission connection with the energy absorption nut, and the locking assembly is used for controlling whether the energy absorption nut can move in the energy absorption sliding groove hole or not; and the seat cushion safety piece is mounted on the seat cushion base. 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 a passive safety 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 bamboo shoots 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 ultra-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 restraint 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 severity 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 a passive safety structure for a zero-gravity seat and an automotive seat to alleviate the technical problem of low safety of zero-gravity seats in vehicle collisions in the prior art.

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

[0006] The backrest safety member includes an energy-absorbing nut and a locking assembly. One end of the bottom of the backrest frame connecting plate is pivotally connected to the seat cushion base, and the other end is provided with an energy-absorbing nut. An energy-absorbing chute hole is formed in the seat cushion base, and the energy-absorbing nut is inserted into the energy-absorbing chute hole. An energy-absorbing block is provided on the seat cushion base, and the energy-absorbing block is connected to the energy-absorbing nut;

[0007] The locking assembly is provided on the seat cushion base, and the locking assembly is in driving connection with the energy-absorbing nut. The locking assembly is used to control whether the energy-absorbing nut can move in the energy-absorbing chute hole;

[0008] The seat cushion safety member is installed on the seat cushion base.

[0009] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the energy-absorbing nut and the energy-absorbing block are of an integral structure, and the energy-absorbing block is provided with a plurality of tearing bands, and the tearing bands are connected to the energy-absorbing nut.

[0010] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the energy-absorbing sliding groove hole includes an assembly circular groove hole and an energy-absorbing arc groove that communicate with each other;

[0011] The assembly circular groove hole is located above the energy-absorbing arc groove;

[0012] The assembly circular groove hole is in transitional fit with the energy-absorbing nut, and the energy-absorbing arc groove is in interference fit with the energy-absorbing nut.

[0013] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the locking assembly includes a locking member and a triggering member;

[0014] The locking member is arranged on the seat cushion base, the locking member is connected to the energy-absorbing nut, the triggering member is arranged on the seat cushion base, and the triggering member is in transmission connection with the locking member;

[0015] The locking member includes a mounting substrate, a locking plate member and a locking tongue plate. The mounting substrate is arranged on the seat cushion base. Both the locking plate member and the locking tongue plate are pivotally connected to the mounting substrate. The locking plate member is in transmission connection with the locking tongue plate. The locking plate member can limit the rotation of the locking tongue plate. The locking tongue plate is connected to the energy-absorbing nut.

[0016] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the locking plate member includes a first locking plate and a second locking plate;

[0017] Both the first locking plate and the second locking plate are pivotally connected to the mounting substrate, and a return torsion spring is arranged between both the first locking plate and the second locking plate and the mounting substrate;

[0018] A card slot is formed on the locking tongue plate. Both the first locking plate and the second locking plate can be engaged with the card slot. When the triggering member is not triggered, the second locking plate is engaged with the card slot. When the triggering member is triggered, the first locking plate is engaged with the card slot;

[0019] A supporting groove is formed at one end of the locking tongue plate away from the locking plate member, and the energy-absorbing nut is located in the supporting groove.

[0020] In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the triggering member includes a triggering execution member and a triggering cable. The triggering execution member is arranged on the seat cushion base, and the triggering execution member is in transmission connection with the second locking plate through the triggering cable.

[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 seat cushion safety component includes a lifting driving component, a lifting plate, and an energy-absorbing and collapsible plate. One end of the seat cushion base is pivotally connected to the seat basin of the seat. One end of the lifting plate is pivotally connected to the seat cushion base, and the other end is pivotally connected to the energy-absorbing and collapsible plate through a stepped bolt. The end of the energy-absorbing and collapsible plate away from the energy-absorbing and collapsible plate is pivotally connected to the seat basin of the seat. The seat cushion base, the seat basin of the seat, the lifting plate, and the energy-absorbing and collapsible plate form a multi-link structure;

[0022] The lifting driving component is arranged at the other end of the seat cushion base, and the lifting driving component is in transmission connection with the lifting plate.

[0023] 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 component adopts a driving motor, and a driving gear is arranged at the output end of the driving motor. An arc-shaped toothed plate is arranged on the lifting plate.

[0024] 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 seat cushion 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-absorbing and collapsible plate is opened at the other end;

[0025] An upper cross tube is arranged on the seat basin of the seat. One end of the energy-absorbing and collapsible plate is pivotally connected to the upper cross tube, and the other end is connected to the lifting plate through the stepped bolt;

[0026] A cross tube pivot connection hole, a second connection hole, and an energy-absorbing connection hole are opened on the energy-absorbing and collapsible 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. A weakening wall is arranged between the energy-absorbing connection hole and the second connection hole;

[0027] A plurality of collapsible and energy-absorbing toothed plates are arranged in the energy-absorbing connection hole.

[0028] In the second aspect, an embodiment of the present invention provides an automobile seat, including the zero-gravity seat passive safety structure.

[0029] Beneficial effects:

[0030] An embodiment of the present invention provides a passive safety structure for a zero-gravity seat, which includes a backrest frame connecting plate, a seat cushion base (seat cushion base), a backrest safety component, and a seat cushion safety component; the backrest safety component includes an energy-absorbing nut and a locking component. One end of the bottom of the backrest frame connecting plate is pivotally connected to the seat cushion base, and the other end is provided with an energy-absorbing nut. An energy-absorbing chute hole is formed on the seat cushion base, and the energy-absorbing nut is inserted into the energy-absorbing chute hole. An energy-absorbing block is arranged on the seat cushion base, and the energy-absorbing block is connected to the energy-absorbing nut; the locking component is arranged on the seat cushion base, and the locking component is in transmission connection with the energy-absorbing nut, and the locking component is used to control whether the energy-absorbing nut can move in the energy-absorbing chute hole; the seat cushion safety component is installed on the seat cushion base.

[0031] Specifically, when the vehicle seat is in the zero-gravity mode and the vehicle has a frontal collision accident, the seat back will move forward due to inertia, the seat back drives the backrest frame connecting plate to rotate, and at the same time the locking component is triggered so that the locking component no longer restricts the energy-absorbing nut. The backrest frame connecting plate will press the energy-absorbing nut to slide in the energy-absorbing chute hole, and the energy-absorbing nut can tear the energy-absorbing block, thereby absorbing the impact force of the seat back and reducing the harm to the user. In addition, the backrest energy-absorbing component is arranged between the backrest frame connecting plate and the seat cushion base, and the seat cushion energy-absorbing component is arranged at the front end of the seat cushion base. Through the settings of the backrest safety component and the seat cushion safety component, the impact force of the vehicle seat during a frontal collision of the vehicle can be absorbed, and the harm to the user's body can be reduced.

[0032] An embodiment of the present invention provides a vehicle seat, which includes a passive safety structure for a zero-gravity seat. The vehicle seat has the above advantages compared with the prior art, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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 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, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic diagram of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0035] Figure 2 It is an internal schematic diagram of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0037] Figure 4Schematic diagram of the internal structure of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0038] Figure 5 Schematic diagram of the seat cushion base of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0039] Figure 6 Schematic diagram of the energy-absorbing nut of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0040] Figure 7 Schematic diagram of the energy-absorbing nut and the locking group of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0041] Figure 8 Schematic diagram of the seat cushion safety member of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0042] Figure 9 Schematic diagram of the structure of the seat cushion safety member of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0043] Figure 10 Internal schematic diagram of the seat cushion safety member of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0044] Figure 11 Schematic diagram of the energy-absorbing and collapsing plate of the seat cushion safety member of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention;

[0045] Figure 12 Cross-sectional view of the energy-absorbing and collapsing plate and the stepped bolt of the seat cushion safety member of the passive safety structure of the zero-gravity seat provided by the embodiment of the present invention.

[0046] Icon:

[0047] 10 - Backrest safety member; 20 - Seat cushion safety member;

[0048] 100 - Backrest skeleton connecting plate;

[0049] 200 - Seat cushion base; 210 - Energy-absorbing chute hole; 211 - Assembly round hole; 212 - Energy-absorbing arc groove; 220 - Energy-absorbing block; 230 - Tear strip; 240 - Lower cross tube; 250 - Seat pan of the seat; 251 - Upper cross tube; 252 - Rear cross tube;

[0050] 300 - Energy-absorbing nut;

[0051] 400 - Locking assembly; 410 - Locking piece; 411 - Mounting substrate; 412 - Locking plate piece; 4121 - First locking plate; 4122 - Second locking plate; 4123 - Return torsion spring; 413 - Lock tongue plate; 4131 - Card slot; 4132 - Support groove; 420 - Trigger piece; 421 - Trigger cable

[0052] 500 - Energy-absorbing and collapsible plate; 501 - Step bolt; 510 - Horizontal pipe pivot hole; 520 - Second connection hole; 530 - Energy-absorbing connection hole; 540 - Weakening wall; 550 - Collapsible energy-absorbing tooth plate

[0053] 600 - Lifting drive member; 610 - Drive gear; 620 - Lifting plate; 630 - Arc tooth plate Detailed implementation manners

[0054] 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

[0055] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by 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. are based on the orientation or positional relationships shown in the drawings, and are 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 thus cannot be understood as a limitation to the present invention

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the 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 otherwise specifically defined

[0057] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside 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.

[0058] The following further describes the present invention in detail through specific embodiments in conjunction with the accompanying drawings.

[0059] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown in

[0060] Specifically, when the vehicle seat is in the zero-gravity mode and a frontal collision occurs, the seat backrest will move forward due to inertia. The seat backrest drives the backrest frame connecting plate 100 to rotate. At the same time, the locking component 400 is triggered, so that the locking component 400 no longer restricts the energy-absorbing nut 300. The backrest frame connecting plate 100 presses the energy-absorbing nut 300 to slide in the energy-absorbing chute hole 210. The energy-absorbing nut 300 can tear the energy-absorbing block 220, thereby absorbing the impact force of the seat backrest and reducing the harm to the user. In addition, the backrest energy-absorbing member is arranged between the backrest frame connecting plate 100 and the seat cushion base 200, and the seat cushion energy-absorbing member is arranged at the front end of the seat cushion base 200. Through the settings of the backrest safety member 10 and the seat cushion safety member 20, the impact force of the vehicle seat during a frontal collision can be absorbed, and the harm to the user's body can be reduced.

[0061] See Figure 1 - Figure 12 As shown, in an alternative solution of this embodiment, the energy-absorbing block 220 has a plurality of tearing belts 230, and the tearing belts 230 are connected to the energy-absorbing nut 300.

[0062] Among them, the energy-absorbing nut 300 and the energy-absorbing block 220 are of an integral structure.

[0063] Among them, the energy-absorbing chute hole 210 includes an assembly circular groove hole 211 and an energy-absorbing arc groove 212 that communicate with each other; the assembly circular groove hole 211 is located above the energy-absorbing arc groove 212; the assembly circular groove hole 211 is in transitional fit with the energy-absorbing nut 300, and the energy-absorbing arc groove 212 is in interference fit with the energy-absorbing nut 300.

[0064] Specifically, the energy-absorbing nut 300 and the energy-absorbing block 220 are of an integral structure. When the energy-absorbing nut 300 is driven by the backrest frame connecting plate to slide in the energy-absorbing chute hole 210 of the seat cushion base 200, the energy-absorbing nut 300 will not break the plurality of tearing belts 230 connected to the energy-absorbing block 220, thereby realizing the energy absorption in the first stage. At this time, the energy-absorbing nut 300 moves from the assembly circular groove hole 211 to the energy-absorbing arc groove 212. Moreover, when the energy-absorbing nut 300 enters the energy-absorbing arc groove 212, the energy-absorbing nut 300 will expand the energy-absorbing arc groove 212, thereby realizing the energy absorption in the second stage. When the energy-absorbing nut 300 moves to the bottom of the energy-absorbing chute hole 210, the seat backrest can be restored from the zero-gravity mode to the normal angle, and during this process, the impact force of the seat backrest can be consumed, reducing the harm to the user.

[0065] See Figure 1 - Figure 12As shown, in an alternative solution of this embodiment, the locking assembly 400 includes a locking member 410 and a triggering member 420; the locking member 410 is disposed on the seat cushion base 200, and the locking member 410 is connected to the energy-absorbing nut 300; the triggering member 420 is disposed on the seat cushion base 200, and the triggering member 420 is in transmission connection with the locking member 410.

[0066] Among them, the triggering member 420 includes a triggering actuator and a triggering cable 421. The triggering actuator is disposed on the seat cushion base 200, and the triggering actuator is in transmission connection with the second lock plate 4122 through the triggering cable 421.

[0067] Specifically, when a frontal collision occurs to the vehicle, the triggering actuator will be detonated, and then the triggering actuator pulls the triggering cable 421, and the triggering cable 421 will pull the locking member 410, thereby releasing the limitation of the locking member 410 on the energy-absorbing nut 300. When the locking member 410 limits the energy-absorbing nut 300, the back bone connecting plate cannot drive the energy-absorbing nut 300 to move within the energy-absorbing sliding groove hole 210.

[0068] Among them, the triggering actuator can adopt devices such as a motor, explosives, etc. Those skilled in the art can select according to actual needs and will not be elaborated herein.

[0069] See Figure 1 - Figure 12 As shown, in an alternative solution of this embodiment, the locking member 410 includes a mounting substrate 411, a lock plate member 412 and a lock tongue plate 413; the mounting substrate 411 is disposed on the seat cushion base 200, and both the lock plate member 412 and the lock tongue plate 413 are pivotally connected to the mounting substrate 411; the lock plate member 412 is in transmission connection with the lock tongue plate 413, the lock plate member 412 can limit the rotation of the lock tongue plate 413, and the lock tongue plate 413 is connected to the energy-absorbing nut 300.

[0070] Among them, the lock plate member 412 includes a first lock plate 4121 and a second lock plate 4122; both the first lock plate 4121 and the second lock plate 4122 are pivotally connected to the mounting substrate 411, and a return torsion spring 4123 is disposed between both the first lock plate 4121 and the second lock plate 4122 and the mounting substrate 411; a slot 4131 is formed on the lock tongue plate 413, and both the first lock plate 4121 and the second lock plate 4122 can be engaged with the slot 4131. When the triggering member 420 is not triggered, the second lock plate 4122 is engaged with the slot 4131, and when the triggering member 420 is triggered, the first lock plate 4121 is engaged with the slot 4131.

[0071] Among them, a supporting groove 4132 is formed at one end of the lock tongue plate 413 away from the lock plate member 412, and the energy-absorbing nut 300 is located in the supporting groove 4132.

[0072] Specifically, when the trigger actuator is triggered, it can pull the trigger cable 421. The trigger cable 421 can pull the second lock plate 4122 to rotate. The energy-absorbing nut 300 can press the supporting groove 4132 to move downward, so that the second lock plate 4122 disengages from the card slot 4131 of the lock tongue plate 413. When the energy-absorbing nut 300 moves to the bottom of the energy-absorbing chute hole 210, the card slot 4131 of the lock tongue plate 413 is engaged with the first lock plate 4121.

[0073] In addition, a return torsion spring 4123 is provided between both the first lock plate 4121 and the second lock plate 4122 and the mounting substrate 411. Through the setting of the return torsion spring 4123, it can be ensured that both the first lock plate 4121 and the second lock plate 4122 are in contact with the lock tongue plate 413. Thus, when the trigger actuator is not triggered, the second lock plate 4122 can be stuck in the card slot 4131, and the first lock plate 4121 can be in contact with the lock tongue plate 413.

[0074] See Figure 1 - Figure 12 As shown in, in an alternative solution of this embodiment, the seat cushion energy-absorbing member includes a lifting drive member 600, a lifting plate 620, and an energy-absorbing and collapsible plate 500. One end of the seat cushion base 200 is pivotally connected to the seat bowl 250 of the seat. One end of the lifting plate 620 is pivotally connected to the seat cushion base 200, and the other end is pivotally connected to the energy-absorbing and collapsible plate 500 through a stepped bolt 501. The end of the energy-absorbing and collapsible plate 500 away from the energy-absorbing and collapsible plate 500 is pivotally connected to the seat bowl 250 of the seat. The seat cushion base 200, the seat bowl 250 of the seat, the lifting plate 620, and the energy-absorbing and collapsible plate 500 form a multi-link structure; the lifting drive member 600 is arranged at the other end of the seat cushion base 200, and the lifting drive member 600 is in transmission connection with the lifting plate 620.

[0075] Specifically, when a frontal collision occurs to the vehicle when the seat is in the zero-gravity mode, the passenger will fall forward. The passenger will press the seat bowl 250 of the seat. The front end of the seat bowl 250 will rotate counterclockwise downward. At this time, the seat bowl 250 of the seat will press the energy-absorbing and collapsible plate 500. The stepped bolt 501 on the energy-absorbing and collapsible plate 500 will crush the collapsible structure inside the energy-absorbing and collapsible plate 500, causing the front end height of the seat bowl 250 of the seat to decrease. And at the same time, the energy-absorbing and collapsible plate 500 will press the lifting plate 620, causing the lifting plate 620 to reversely drive the lifting drive member 600 to reset, so that the lifting plate 620 rotates counterclockwise, causing the front end height of the seat bowl 250 of the seat to decrease. Through such a setting, the impact force of the human body on the seat bowl 250 of the seat is consumed, the pressing force between the human body and the seat bowl 250 of the seat is reduced, and the injury suffered by the human body is alleviated.

[0076] Among them, a rear cross tube 252 is provided on the seat bowl 250 of the seat, and the seat cushion base 200 is pivotally connected to the rear cross tube 252.

[0077] See Figure 1- Figure 12 As 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.

[0078] 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 250 to lift or lower.

[0079] See Figure 1 - Figure 12 As shown, in an alternative solution of this embodiment, a lower horizontal tube 240 is provided on the seat cushion base 200. One end of the lifting plate 620 is pivotally connected to the lower horizontal tube 240, and a first connection hole for connecting with the energy-absorbing and collapsible plate 500 is provided at the other end.

[0080] Among them, an upper horizontal tube 251 is provided on the seat basin 250. One end of the energy-absorbing and collapsible plate 500 is pivotally connected to the upper horizontal tube 251, and the other end is connected to the lifting plate 620 through a stepped bolt 501.

[0081] See Figure 1 - Figure 12 As shown, in an alternative solution of this embodiment, a horizontal tube pivot connection 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 horizontal tube pivot connection hole 510 is used for pivotal connection with the upper horizontal tube 251, 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.

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

[0083] Among them, the plurality of collapsible energy-absorbing toothed plates 550 are symmetrically arranged in the energy-absorbing connection hole 530.

[0084] Among them, the energy-absorbing connection hole 530 is in a fishbone shape.

[0085] Specifically, the energy-absorbing and collapsible plate 500 is provided with a horizontal pipe pivot connection hole 510, a second connection hole 520, and an energy-absorbing connection hole 530. A weakened 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 weakened wall 540, enabling the normal use of the vehicle seat. When a frontal collision occurs to the vehicle, the seat basin 250 is violently impacted by the user. The seat basin 250 will impact the energy-absorbing and collapsible plate 500. At this time, the step bolt 501 will impact and break the weakened 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 250 to decrease. During the descent process, the impact energy of the human body on the seat basin 250 is absorbed, the pressure between the human body and the seat basin 250 is reduced, and the injury suffered by the human body is reduced.

[0086] 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 250, further reducing the pressure between the human body and the seat basin 250, and reducing the injury suffered by the human body.

[0087] Specifically, when the seat is adjusted to the high-comfort mode and the vehicle collides, the trigger unlocks the locking member 410 in the backrest energy-absorbing structure, opening the downward channel of the backrest frame;

[0088] Step 1: The PLP detonates, the seat belt tightens, preventing the passenger from lunging forward and diving downward;

[0089] Step 2: The seat cushion airbag detonates, and the airbag inflates and expands, preventing the passenger from lunging forward and diving downward;

[0090] Step 3: The retractor detonates, the seat belt tightens, preventing the passenger's torso from lunging forward;

[0091] Step 4: The energy-absorbing and collapsible plate 500 in the seat cushion 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 5: At the same time, the energy-absorbing nut 300 of the backrest safety member 10 and the energy-absorbing block 220 collapse, the lock tongue plate 413 is driven by the backrest, and the backrest frame assembly quickly returns to the normal mode;

[0093] Step 6: The card slot 4131 of the lock tongue plate 413 is clamped with the second lock plate 4122, preventing the backrest from further flipping backward and causing secondary injury to the passenger.

[0094] This embodiment provides an automotive seat, including a zero-gravity seat passive safety structure.

[0095] Specifically, the automotive seat provided in this embodiment has the advantages of the above zero-gravity seat passive safety structure compared with the prior art, which will not be elaborated here.

[0096] 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 make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A zero-gravity seat passive safety structure, characterized in that: include: A backrest frame connecting plate (100), a seat cushion base (200), a backrest safety component (10) and a seat cushion safety component (20); The backrest safety component (10) comprises an energy absorbing nut (300) and a locking assembly (400); one end of the bottom of the backrest frame connecting plate (100) is pivotally connected to the seat cushion base (200), and the other end is provided with an energy absorbing nut (300); an energy absorbing slot hole (210) is provided on the seat cushion base (200), and the energy absorbing nut (300) is inserted into the energy absorbing slot hole (210); an energy absorbing block (220) is provided on the seat cushion base (200), and the energy absorbing block (220) is connected to the energy absorbing nut (300); The locking assembly (400) is arranged on the seat cushion base (200), the locking assembly (400) is in transmission connection with the energy absorbing nut (300), and the locking assembly (400) is used to control whether the energy absorbing nut (300) can move in the energy absorbing slide slot hole (210); The seat cushion safety member (20) is mounted on the seat cushion base (200).

2. The passive safety structure of the zero-gravity seat according to claim 1, characterized in that: The energy absorbing nut (300) and the energy absorbing block (220) are an integrated structure; the energy absorbing block (220) is provided with a plurality of tearing strips (230); and the tearing strips (230) are connected to the energy absorbing nut (300).

3. The passive safety structure of the zero-gravity seat according to claim 1, characterized in that: The energy absorbing sliding groove hole (210) comprises an assembly circular groove hole (211) and an energy absorbing arc groove (212) which are interconnected; The assembly circular groove hole (211) is located above the energy absorbing arc groove (212); The assembly circular groove hole (211) is transitionally matched with the energy absorbing nut (300), and the energy absorbing arc groove (212) is interference matched with the energy absorbing nut (300).

4. The passive safety structure of the zero-gravity seat according to claim 3, characterized in that: The locking assembly (400) comprises a locking member (410) and a trigger member (420); The locking member (410) is arranged on the seat cushion base (200), the locking member (410) is connected to the energy absorbing nut (300), the trigger member (420) is arranged on the seat cushion base (200), and the trigger member (420) is transmission-connected to the locking member (410); The locking member (410) includes a mounting base (411), a locking plate member (412) and a locking tongue plate (413); the mounting base (411) is arranged on the seat cushion base (200); the locking plate member (412) and the locking tongue plate (413) are both pivotally connected to the mounting base (411); the locking plate member (412) is transmission-connected to the locking tongue plate (413); the locking plate member (412) can limit the rotation of the locking tongue plate (413); and the locking tongue plate (413) is connected to the energy absorbing nut (300).

5. The passive safety structure of the zero-gravity seat according to claim 4, characterized in that: The locking plate member (412) comprises a first locking plate (4121) and a second locking plate (4122); The first lock plate (4121) and the second lock plate (4122) are both pivotally connected to the mounting base plate (411), and a return torsion spring (4123) is provided between the first lock plate (4121) and the second lock plate (4122) and the mounting base plate (411); The lock tongue plate (413) is provided with a card slot (4131), and both the first lock plate (4121) and the second lock plate (4122) can be carded with the card slot (4131). When the trigger member (420) is not triggered, the second lock plate (4122) is carded with the card slot (4131); when the trigger member (420) is triggered, the first lock plate (4121) is carded with the card slot (4131); A supporting groove (4132) is formed at one end of the locking tongue plate (413) away from the locking plate member (412), and the energy absorbing nut (300) is located in the supporting groove (4132).

6. The passive safety structure of the zero-gravity seat according to claim 5, characterized in that: The trigger member (420) comprises a trigger actuator and a trigger cable (421); the trigger actuator is arranged on the seat cushion base (200); and the trigger actuator is transmission-connected to the second lock plate (4122) via the trigger cable (421).

7. The passive safety structure of a zero-gravity seat according to claim 1, characterized in that: The seat cushion safety member (20) comprises a lifting driving member (600), a lifting plate (620) and an energy absorbing and collapsing plate (500); one end of the seat cushion base (200) is pivotally connected to the seat basin (250); one end of the lifting plate (620) is pivotally connected to the seat cushion base (200); the other end of the lifting plate (620) is pivotally connected to the energy absorbing and collapsing plate (500) via a step bolt (501); one end of the energy absorbing and collapsing plate (500) away from the energy absorbing and collapsing plate (500) is pivotally connected to the seat basin (250); the seat cushion base (200), the seat basin (250), the lifting plate (620) and the energy absorbing and collapsing plate (500) form a multi-link structure; The lifting drive member (600) is arranged on the other end of the seat cushion base (200), and the lifting drive member (600) is transmission-connected to the lifting plate (620).

8. The passive safety structure of the zero-gravity seat 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 passive safety structure of the zero-gravity seat according to claim 8, characterized in that: The seat cushion base (200) is provided with a lower transverse tube (240), one end of the lifting plate (620) is pivotally connected to the lower transverse tube (240), and the other end is provided with a first connection hole for connecting with the energy absorbing collapse plate (500); An upper transverse tube (251) is provided on the seat basin (250); one end of the energy absorbing collapse plate (500) is pivotally connected to the upper transverse tube (251), 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 (251); the second connection hole (520) is used for connecting with the lifting plate (620); 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 passive safety structure of a zero-gravity seat as described in any one of claims 1 to 9.

Images