Seat frame, seat, and vehicle

Abstract

The present application relates to a seat frame, a seat, and a vehicle. The seat frame comprises a frame body, a first rotating apparatus, and a passive resetting apparatus. The frame body comprises a seat frame and a base. The base is arranged on the lower side of the seat frame. The first rotating apparatus comprises a first angle adjuster and a first rod. The first angle adjuster comprises a first angle adjuster body, a first support, and a second support. The first angle adjuster body is connected to the first support and the second support. The first support is connected to the base. The second support is pivotally connected to a first end of the first rod. A second end of the first rod is pivotally connected to a front end of the seat frame. The first angle adjuster body is used to adjust the included angle between the first support and the second support. The passive resetting apparatus comprises a first deployment device. The first deployment device is connected to the first support. When the first deployment device operates, the first support can drive the first rod to move downwards. The seat frame of the present application can reset when a vehicle experiences collision, so as to ensure the safety of a passenger, the occupied space is small, and the degree of integration is high.

Description

Seat frame, seat and vehicle

[0001] The present application claims priority to the Chinese patent application No. 202410546797.9, filed on April 30, 2024, and entitled "Seat frame, seat and vehicle", and the Chinese patent application No. 202410548760.X, filed on April 30, 2024, and entitled "Seat frame, seat and vehicle", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of vehicles, and in particular to a seat frame, a seat and a vehicle. BACKGROUND

[0003] With the development of automobile intelligence and the continuous maturity of automatic driving technology, passengers have higher and higher requirements for comfort in the vehicle, and various forms of zero-gravity seats have also emerged. In the process of using the zero-gravity seat, the passenger is in a lying position, at this time, when the vehicle collides, the safety belt has poor restraining force on the passenger, and there is a large safety hazard.

[0004] In order to reduce the injury of the passenger caused by the vehicle collision, it is necessary to reset the seat frame of the seat to make the passenger return to the best posture to meet the collision. In the related art, the adjustment of the front end angle of the seat frame is driven by using a "linear driving part + connecting rod" mode, but the above driving structure occupies a large space at the front end of the seat frame when combined with the point explosion reset device, and the degree of integration is poor. In the related art, the design of the passive reset device of the seat frame is complex, and the passive reset device occupies a large space of the seat frame when combined with the angle adjusting mechanism of the seat frame, and the integration effect is poor. SUMMARY

[0005] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0006] To this end, the embodiments of the present application provide a seat frame, the seat frame of which can be reset when the vehicle collides to ensure the safety of the passenger, and occupies a small space and has a high degree of integration.

[0007] The embodiments of the present application also provide a seat.

[0008] The embodiments of the present application also provide a vehicle.

[0009] The seat framework of the embodiment of the present application comprises: a framework body comprising a seat frame and a base provided at the lower side of the seat frame; a first rotating device comprising a first angle adjuster and a first rod, the first angle adjuster comprising a first angle adjuster body, a first support and a second support, the first angle adjuster body being connected with the first support and the second support, the first support being connected with the base, the second support being pivoted with the first end of the first rod, the second end of the first rod being pivoted with the front end of the seat frame, the first angle adjuster body being used for adjusting the included angle between the first support and the second support; and a passive reset device comprising a first point detonator, the first point detonator being connected with the first support, when the first point detonator works, the first support can drive the first rod to move downward to reduce the pitch angle of the front end of the seat frame.

[0010] According to the seat framework of the embodiment of the present application, since the first support is connected with the base, the second support is pivoted with the first end of the first rod, and the second end of the first rod is pivoted with the front end of the seat frame, the included angle between the first support and the second support can be adjusted by the first angle adjuster body to adjust the pitch angle of the front end of the seat frame. Since the first point detonator is connected with the first support, when the first point detonator works, the first support can drive the first rod to move downward, and it can be understood that after the first point detonator is detonated, the first support can move downward under the action of the gravity of the passenger to drive the first angle adjuster and the first rod to also move downward, so as to drive the front end of the seat frame to descend, thereby the angle of the front end of the seat frame can be reset to ensure the safety of the passenger. The seat framework of the embodiment of the present application integrates the first point detonator on the first support of the first angle adjuster, the arrangement structure is simple, the occupied space is small, and the degree of integration is high.

[0011] In some embodiments, the passive reset device comprises a first fixing member and a second fixing member, the base has a connecting frame, the first support is connected with the connecting frame, the first fixing member and the second fixing member are arranged in a spaced manner and are both provided through the connecting frame and the first support, the first point detonator is connected with the second fixing member and the connecting frame, when the first point detonator works, the second fixing member can be driven to separate from the connecting frame and the first support to enable the first support to rotate downward around the axis of the first fixing member.

[0012] In some embodiments, the first bracket is provided with a first sliding groove extending along a first arc, the center of the first arc being located on the axis of the first fixing member, the second fixing member penetrating the connecting frame and the first sliding groove, the first fixing member being arranged adjacent to the top of the first sliding groove, and the passive reset device further comprises a first guide member penetrating the connecting frame and the first sliding groove, the first guide member being arranged adjacent to the bottom of the first sliding groove.

[0013] In some embodiments, the width of the first sliding groove gradually decreases from the bottom of the first sliding groove to the top of the first sliding groove, and the outer diameter of the first guide member is smaller than the width of the top of the first sliding groove; and / or, the passive reset device further comprises a first energy-absorbing sheet sleeved on the first guide member and connected with the first bracket, the first energy-absorbing sheet being breakable and energy-absorbing to hinder the first bracket from rotating downward around the axis of the first fixing member.

[0014] In some embodiments, the seat framework further comprises a second rotating device, the second rotating device comprising a second linear driving member and a third rod, the first end of the third rod being pivotally connected with the rear end of the base, the second end of the third rod being pivotally connected with the rear end of the seat frame, the third end of the third rod being connected with the first end of the second linear driving member, the second end of the second linear driving member being pivotally connected with the second end of the first rod, and the length of the second linear driving member being adjustable to adjust the height of the seat frame.

[0015] In some embodiments, the first rotating device is two sets, and the two sets of first rotating devices are arranged on the left and right sides of the base, respectively, and the second rotating device is also two sets, and the two sets of second rotating devices are arranged on the left and right sides of the base, respectively.

[0016] In some embodiments, the seat frame comprises a seat frame body and a first intermediate rod penetrating the seat frame body in the left-right direction of the base, and the first ends of the two sets of first rods and the second ends of the two sets of second linear driving members are all pivotally connected with the first intermediate rod; and / or, the seat frame comprises a seat frame body and a second intermediate rod, the two ends of the second intermediate rod being respectively pivotally connected with the third ends of the two sets of third rods, and the first ends of the two sets of second linear driving members being all connected with the second intermediate rod.

[0017] In some embodiments, the seat frame further comprises a backrest and a second angle adjuster, the second angle adjuster comprises a second angle adjuster body, a third support and a fourth support, the third support and the fourth support are both connected with the second angle adjuster body, the third support is connected with the seat frame, the fourth support is connected with the backrest, the second angle adjuster body is used to adjust the included angle between the third support and the fourth support, the passive reset device further comprises a second point explosion device, a third fixing member and a fourth fixing member, the third fixing member and the fourth fixing member are arranged in a spaced manner and both pass through the third support and the seat frame, the second point explosion device is connected with the third fixing member, and the second point explosion device can drive the third fixing member to separate from the third support and the seat frame when working, so as to make the backrest rotate forward around the axis of the fourth fixing member.

[0018] In some embodiments, the seat frame further comprises an active reset device, the active reset device comprises a reset motor and a controller, the controller and the second angle adjuster body are both connected with the reset motor, and the reset motor can drive the second angle adjuster body to rotate when the controller receives a pre-collision signal, so as to make the backrest rotate forward around the axis of the second angle adjuster body.

[0019] In some embodiments, a second sliding groove is arranged on the third support, the second sliding groove extends along a second arc line, the center of the second arc line is located on the axis of the fourth fixing member, the third fixing member passes through the second sliding groove and the third support, the third fixing member is arranged adjacent to the bottom of the second sliding groove, and the passive reset device further comprises a second guide member, the second guide member passes through the second sliding groove and the third support, and the second guide member is arranged adjacent to the top of the second sliding groove.

[0020] In some embodiments, in the direction from the top of the second sliding groove to the bottom of the second sliding groove, the width dimension of the second sliding groove gradually decreases, and the outer diameter of the second guide member is smaller than the width dimension of the bottom of the second sliding groove; and / or, the passive reset device further comprises a second energy-absorbing sheet, the second energy-absorbing sheet is sleeved on the second guide member and connected with the third support, the second energy-absorbing sheet can be broken and energy-absorbed to hinder the backrest from rotating forward around the axis of the fourth fixing member.

[0021] The seat according to another embodiment of the present application comprises a seat frame, the seat frame is any one of the seat frames according to the embodiments of the present application; and a safety belt arranged on the seat frame.

[0022] According to the seat framework of the embodiment of the present application, since the first support is connected with the base, the second support is pivoted with the first end of the first rod, and the second end of the first rod is pivoted with the front end of the seat frame, the included angle between the first support and the second support can be adjusted by the first angle adjuster body, so as to adjust the pitch angle of the front end of the seat frame. Since the first point explosion device is connected with the first support, when the first point explosion device works, the first support can drive the first rod to move downward. It can be understood that after the first point explosion device explodes, the first support can move downward under the action of the gravity of the passenger, so that the first angle adjuster drives the first rod to also move downward, thereby driving the front end of the seat frame to descend, so that the angle of the front end of the seat frame can be reset to ensure the safety of the passenger. The seat framework of the embodiment of the present application integrates the first point explosion device on the first support of the first angle adjuster, and has simple arrangement structure, small occupied space, and high integration degree.

[0023] The vehicle of another embodiment of the present application comprises the seat framework or the seat of any one of the embodiments of the present application.

[0024] The seat framework of the embodiment of the present application has simple passive reset device design, small occupied space, and high integration degree.

[0025] The embodiment of the present application further proposes a seat.

[0026] The embodiment of the present application further proposes a vehicle.

[0027] The seat framework of the embodiment of the present application comprises: a framework body, the framework body comprising a seat frame and a base, the base being arranged on the lower side of the seat frame; a third rotating device, the third rotating device comprising a first linear driving member, a first rod and a second rod, the first end of the first rod being pivoted with the front end of the seat frame, the second end of the first rod being pivoted with the first end of the second rod, the second end of the second rod being pivoted with the front end of the base, the third end of the second rod being pivoted with the first end of the first linear driving member, the first linear driving member being arranged on the base and being used for driving the first rod and the second rod to rotate; a passive reset device, the passive reset device comprising a first point explosion device, the first point explosion device being connected with the second rod, when the first point explosion device works, the second rod is movable relative to the first end of the first linear driving member, so that the second rod rotates downward around the second end of the second rod.

[0028] According to the seat frame of the embodiment of the present application, the first linear driving member can drive the second rod to rotate around the second end of the second rod, and the second rod can drive the first rod to rotate to complete the angle adjustment of the front end of the seat frame. Since the first point explosion device is connected with the second rod, when the first point explosion device works, the second rod can move relative to the first end of the first linear driving member, that is, the second rod is unlocked with the first linear driving member. Under the action of the gravity and inertial force of the occupant, the second rod can rotate downward around the second end of the second rod, so as to drive the first rod and the front end of the seat frame to move downward, thereby reducing the elevation angle of the front end of the seat frame. Therefore, the seat frame of the embodiment of the present application has the advantages of simple structure design, less space occupation of the seat frame, and high integration degree by integrating the first point explosion device on the second rod.

[0029] In some embodiments, the second rod is provided with a first sliding groove extending in the front-rear direction of the seat frame, the third rotating device includes a first pivot shaft connected with the first end of the first linear driving member and rotatingly penetrating the front end of the first sliding groove, and the passive reset device includes a fifth fixed member penetrating the first sliding groove and stopping at the rear side of the first pivot shaft. When the first point explosion device works, the fifth fixed member can be separated from the first sliding groove, so that the second rod moves relative to the first pivot shaft in the extension direction of the first sliding groove.

[0030] In some embodiments, in the direction from the front end of the first sliding groove to the rear end of the first sliding groove, the width dimension of the first sliding groove gradually decreases, and the outer diameter of the first pivot shaft is smaller than the width dimension of the rear end of the first sliding groove.

[0031] In some embodiments, the passive reset device further includes a third energy-absorbing sheet including a first outer ring portion, a first inner ring portion and a first energy-absorbing portion. The first outer ring portion is arranged outside the first inner ring portion, the first outer ring portion is connected with the first inner ring portion through the first energy-absorbing portion, the first outer ring portion is connected on the second rod, the first inner ring portion is sleeved on the first pivot shaft, and the first energy-absorbing portion is used for energy absorption and fracture when the second rod moves relative to the first pivot shaft.

[0032] In some embodiments, the second rod includes a first connecting segment, a second connecting segment and a third connecting segment. The first connecting segment is arranged on one side of the second connecting segment adjacent to the first rod in the left-right direction of the seat frame, the third connecting segment is arranged on the other side of the second connecting segment away from the first rod in the left-right direction of the seat frame, the first connecting segment is pivotally connected with the base and the first rod, the first sliding groove is arranged on the third connecting segment, the first point explosion device is connected with the third connecting segment, and the first point explosion device is arranged on the side of the third connecting segment away from the second connecting segment.

[0033] In some embodiments, the seat frame further comprises a backrest and a second angle adjuster, the second angle adjuster comprising a second angle adjuster body, a third support and a fourth support, the third support and the fourth support are both connected with the second angle adjuster body, the third support is connected with the seat frame, the fourth support is connected with the backrest, the second angle adjuster body is used to adjust the included angle between the third support and the fourth support, the passive reset device further comprises a second point exploder, a sixth fixing member and a fourth fixing member, the sixth fixing member and the fourth fixing member are arranged in a spaced manner and both pass through the third support and the seat frame, the second point exploder is connected with the sixth fixing member, the second point exploder can drive the sixth fixing member to separate from the third support and the seat frame when working, so as to make the backrest rotate forward around the axis of the fourth fixing member.

[0034] In some embodiments, a second sliding groove is arranged on the third support, the second sliding groove extends along a second arc line, the center of the second arc line is located on the axis of the fourth fixing member, the sixth fixing member passes through the second sliding groove and the third support, the sixth fixing member is arranged adjacent to the bottom of the second sliding groove, the passive reset device further comprises a second guide member, the second guide member passes through the second sliding groove and the third support, and the second guide member is arranged adjacent to the top of the second sliding groove.

[0035] In some embodiments, in the direction from the top of the second sliding groove to the bottom of the second sliding groove, the width dimension of the second sliding groove gradually decreases, and the outer diameter of the second guide member is smaller than the width dimension of the bottom of the second sliding groove; and / or, the passive reset device further comprises a second energy-absorbing sheet, the second energy-absorbing sheet comprises a second outer ring portion, a second inner ring portion and a second energy-absorbing portion, the second outer ring portion is arranged outside the second inner ring portion, the second outer ring portion is connected with the second inner ring portion through the second energy-absorbing portion, the second outer ring portion is connected with the third support, the second inner ring portion is sleeved on the second guide member, and the second energy-absorbing portion is used to absorb energy by breaking when the backrest rotates forward around the axis of the fourth fixing member.

[0036] In some embodiments, the seat frame further comprises a second rotating device, the second rotating device comprising a second linear drive member and a third rod, the first end of the third rod is pivoted with the rear end of the base, the second end of the third rod is pivoted with the rear end of the seat frame, the third end of the third rod is pivoted with the first end of the second linear drive member, the second end of the second linear drive member is pivoted with the first end of the first rod, and the length of the second linear drive member is adjustable to adjust the height of the seat frame.

[0037] In some embodiments, the third rotating device is two groups, and the two groups of the third rotating device are arranged on the left and right sides of the base respectively; the second rotating device is two groups, and the two groups of the second rotating device are arranged on the left and right sides of the base respectively.

[0038] In some embodiments, the seat frame comprises a seat frame body and a first intermediate rod, the first intermediate rod is arranged in the seat frame body along the left-right direction of the base, and the first ends of the two groups of first rods and the second ends of the two groups of second linear driving members are pivotally connected to the first intermediate rod; and / or the seat frame comprises a seat frame body and a second intermediate rod, two ends of the second intermediate rod are respectively pivotally connected to the third ends of the two groups of third rods, and the first ends of the two groups of second linear driving members are connected to the second intermediate rod.

[0039] Another embodiment of the seat of the present application comprises the seat frame of any one of the embodiments of the present application.

[0040] According to the seat frame of the embodiments of the present application, the first linear driving member can drive the second rod to rotate around the second end of the second rod, and the second rod can drive the first rod to rotate to complete the angle adjustment of the front end of the seat frame. Since the first point explosion device is connected to the second rod, when the first point explosion device works, the second rod can move relative to the first end of the first linear driving member, that is, the second rod and the first linear driving member are unlocked. Under the action of the gravity and inertial force of the occupant, the second rod can rotate downward around the second end of the second rod, so as to drive the first rod and the front end of the seat frame to move downward, thereby reducing the elevation angle of the front end of the seat frame. Therefore, the seat frame of the embodiments of the present application integrates the first point explosion device on the second rod, has a simple structure design, occupies less space of the seat frame, and has a high degree of integration.

[0041] Another embodiment of the vehicle of the present application comprises the seat frame or the seat of any one of the embodiments of the present application.

[0042] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0043] The drawings herein are incorporated into the description and form part of the description, show embodiments consistent with the present application, and together with the description serve to explain the principles of the present application.

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings below can also provide further drawings based on these drawings for those ordinarily skilled in the art without any creative effort.

[0045] Fig. 1 is a schematic view of a seat framework according to an embodiment of the present application.

[0046] Fig. 2 is a partial schematic view of a seat framework according to an embodiment of the present application.

[0047] Fig. 3 is a side view of a seat framework according to an embodiment of the present application.

[0048] Fig. 4 is a schematic view of a seat framework according to another embodiment of the present application.

[0049] Fig. 5 is a side view of a seat framework according to another embodiment of the present application.

[0050] Fig. 6 is a partial schematic view of a seat framework according to another embodiment of the present application.

[0051] Fig. 7 is a partial schematic view of a seat framework (with the connecting frame removed) according to another embodiment of the present application.

[0052] Fig. 8 is a partial schematic view of a seat framework according to another embodiment of the present application.

[0053] Fig. 9 is a partial installation schematic view of a second angle adjuster of a seat framework according to another embodiment of the present application.

[0054] Fig. 10 is an axial side view of a seat framework according to an embodiment of the present application.

[0055] Fig. 11 is a side view of a seat framework according to an embodiment of the present application.

[0056] Fig. 12 is a partial schematic view of a seat framework according to an embodiment of the present application.

[0057] Fig. 13 is another partial schematic view of a seat framework according to an embodiment of the present application.

[0058] Fig. 14 is a partial schematic view of a seat framework (with a first end of a first linear drive hidden) according to an embodiment of the present application.

[0059] Fig. 15 is an installation schematic view of a first angle adjuster of a seat framework according to another embodiment of the present application.

[0060] Reference numerals: 1. Frame body; 11. Seat frame; 111. Seat frame body; 112. First intermediate rod; 113. Second intermediate rod; 12. Backrest; 13. Base; 131. Connecting frame; 2. First rotating device; 21. First angle adjuster; 211. First angle adjuster body; 212. First bracket; 2121. First slide groove; 213. Second bracket; 22. First rod; 26. Splined shaft; 24. Angle adjusting motor; 3. Second rotating device; 31. Second linear drive component; 32. Third rod; 4. Second angle adjuster; 411. Second angle adjuster body; 42. Third bracket; 412. Second slide groove; 43. Fourth bracket; 51. First detonator; 521. First fixing component; 522. Second fixing component; 523. Third fixing component; 524. Fourth fixing component; 531. First guide component; 532. Second guide component; 541. First energy-absorbing plate; 542. Second energy-absorbing plate; 55. Second detonator; 6. Active reset device; 61. Reset motor; 7. Seat cushion airbag; 8. Third rotating device; 81. First linear drive component; 23. Second rod; 231. First connecting section; 232. Second connecting section; 233. Third connecting section; 2331. Third slide groove; 25. First pivot; 41. Third detonator; 421. Fifth fixing component; 422. Sixth fixing component; 431. Third energy-absorbing plate. Specific Implementation

[0061] The embodiments of this application are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0062] The following description, with reference to Figures 1 to 9, describes a seat frame, seat, and vehicle according to embodiments of the present application.

[0063] As shown in Figures 1 to 3 and Figure 6, the seat frame of this application embodiment includes: a frame body 1, a first rotating device 2, and a passive reset device.

[0064] The frame body 1 includes a seat frame 11 and a base 13, with the base 13 located below the seat frame 11. The first rotating device 2 includes a first angle adjuster 21 and a first rod 22. The first angle adjuster 21 includes a first angle adjuster body 211, a first bracket 212, and a second bracket 213, which are connected to the first bracket 212 and the second bracket 213. It should be noted that the first bracket 212 is connected to the fixed portion of the first angle adjuster body 211, and the second bracket 213 is connected to the rotating portion of the first angle adjuster body 211. Therefore, when the first angle adjuster body 211 rotates, the included angle between the first bracket 212 and the second bracket 213 can be changed.

[0065] The first support 212 is connected with the base 13, the second support 213 is pivoted with the first end of the first rod 22, the second end of the first rod 22 is pivoted with the front end of the seat frame 11, the first angle adjuster body 211 is used for adjusting the included angle between the first support 212 and the second support 213, the passive reset device comprises a first detonator 51, the first detonator 51 is connected with the first support 212, when the first detonator 51 works, the first support 212 can drive the first rod 22 to move downward, so as to reduce the elevation angle of the front end of the seat frame 11.

[0066] According to the seat framework of the embodiment of the present application, the first support 212 is connected with the base 13, the second support 213 is pivoted with the first end of the first rod 22, the second end of the first rod 22 is pivoted with the front end of the seat frame 11, so that the included angle between the first support 212 and the second support 213 can be adjusted by the first angle adjuster body 211, so as to adjust the elevation angle of the front end of the seat frame 11. Since the first detonator 51 is connected with the first support 212, when the first detonator 51 works, the first support 212 can drive the first rod 22 to move downward, it can be understood that after the first detonator 51 detonates, the first support 212 can move downward under the action of the gravity of the occupant, so that the first angle adjuster 21 drives the first rod 22 to also move downward, thereby driving the front end of the seat frame 11 to descend, so that the angle of the front end of the seat frame 11 can be reset, so as to ensure the safety of the occupant. The seat framework of the embodiment of the present application integrates the first detonator 51 on the first support 212 of the first angle adjuster 21, the arrangement structure is simple, the occupied space is small, and the integration degree is high.

[0067] When the occupant is in the zero-gravity posture, the elevation angle of the seat frame 11 is usually greater than 10 degrees, so it is necessary to reset the seat frame 11 to within 10 degrees by the passive reset device, so as to better prepare for the collision in the posture, thereby further improving the safety of the seat framework in use.

[0068] It can be understood that after the first detonator 51 detonates, the first support 212 is unlocked, under the action of the gravity of the occupant, the first support 212 can move downward relative to the base 13, the first support 212 will simultaneously drive the second support 213, the first rod 22 and the front end of the seat frame 11 to move downward, so that the reset of the seat frame 11 can be completed.

[0069] Optionally, the passive reset device comprises a first fixing member 521 and a second fixing member 522, the base 13 is provided with a connecting frame 131, the first support 212 is connected with the connecting frame 131, the first fixing member 521 and the second fixing member 522 are arranged at intervals and both are arranged through the connecting frame 131 and the first support 212, the first detonator 51 is connected with the second fixing member 522 and the connecting frame 131, and when the first detonator 51 works, the second fixing member 522 can be driven to separate from the connecting frame 131 and the first support 212, so that the first support 212 rotates downward around the axis of the first fixing member 521.

[0070] It can be understood that the passive reset device is detonated by the first detonator 51 after the vehicle is collided. When the first detonator 51 is detonated, the second fixing member 522 can be driven to separate from the connecting frame 131 and the first support 212, so that the connecting frame 131 and the first support 212 are connected only through the first fixing member 521, and under the action of the gravity and inertia of the occupant, the occupant can press the front end of the seat frame 11 to rotate downward, at this time, the first angle adjuster 21 rotates forward around the axis of the first fixing member 521, and correspondingly, the front end of the seat frame 11 also descends synchronously, so that the occupant can return to the best posture to meet the collision. In the present application, the passive reset device of the seat frame 11 is arranged as the above structure, so that the occupied space of the passive reset device can be reduced, the required parts are less, and the reset of the seat frame 11 is more smooth.

[0071] Optionally, as shown in FIG. 6 and FIG. 7, the first support 212 is provided with a first sliding groove 2121, the first sliding groove 2121 extends along a first arc line, the center of the first arc line is located on the axis of the first fixing member 521, the second fixing member 522 is arranged through the connecting frame 131 and the first sliding groove 2121, and the first fixing member 521 is arranged adjacent to the top of the first sliding groove 2121. The passive reset device further comprises a first guide member 531, the first guide member 531 is arranged through the connecting frame 131 and the first sliding groove 2121, and the first guide member 531 is arranged adjacent to the bottom of the first sliding groove 2121. It can be understood that when the seat frame 11 is reset passively, the first guide member 531 is fixed, and the first sliding groove 2121 can slide along the first arc line relative to the first guide member 531. The first guide member 531 can guide and limit the movement of the first support 212, so as to improve the reliability of the reset of the seat frame 11.

[0072] In addition, the present application can constrain the extension length of the first sliding groove 2121 to constrain the end point of the passive reset of the seat frame 11, in other words, when the seat frame 11 is reset passively to a set position, the first guide member 531 can stop the first support 212 from continuing to rotate, so as to ensure that the occupant returns to the best collision posture.

[0073] Optionally, as shown in FIG. 6 and FIG. 7, the width dimension of the first sliding groove 2121 gradually decreases from the bottom of the first sliding groove 2121 to the top of the first sliding groove 2121, and the outer diameter of the first guide 531 is smaller than the width dimension of the top of the first sliding groove 2121.

[0074] It should be noted that the distance between the two side walls of the first sliding groove 2121 perpendicular to the extending direction of the first sliding groove 2121, i.e. the side wall adjacent to the first fixed part 521 and the side wall away from the first fixed part 521, is the width dimension of the first sliding groove 2121.

[0075] In other words, the width direction of the first sliding groove 2121, the extending direction of the first sliding groove 2121 and the thickness of the first bracket 212 are orthogonal to each other.

[0076] It can be understood that the width dimension of the first sliding groove 2121 gradually decreases from bottom to top, so that when the first sliding groove 2121 slides relative to the first guide 531, the first bracket 212 can rotate downward with damping. In other words, when the first sliding groove 2121 slides relative to the first guide 531, the side wall of the first sliding groove 2121 will interfere with the first guide 531 due to the gradual narrowing of the width of the first sliding groove 2121, so that the energy when the seat frame 11 is passively reset can be absorbed to achieve energy absorption and better protect the safety of the occupant.

[0077] Optionally, as shown in FIG. 7, the passive resetting device further comprises a first energy-absorbing sheet 541, the first energy-absorbing sheet 541 is sleeved on the first guide 531 and connected with the first bracket 212, the first energy-absorbing sheet 541 can be broken and energy-absorbed to hinder the first bracket 212 from rotating downward around the axis of the first fixed part 521. For example, the first energy-absorbing sheet 541 can be welded or integrally formed on the first bracket 212, and the first guide 531 is arranged through the first energy-absorbing sheet 541, when the first sliding groove 2121 slides relative to the first guide 531, the first energy-absorbing sheet 541 can be broken and deformed due to the downward impact force of the occupant, thereby achieving energy absorption to better protect the safety of the occupant.

[0078] In some embodiments, as shown in FIG. 2, the seat frame further comprises a second rotating device 3, the second rotating device 3 comprises a second linear drive 31 and a third rod 32, for example, the second linear drive 31 can be a linear screw motor, or a linear cylinder or a linear oil cylinder. The first end of the third rod 32 is pivotally connected with the rear end of the base 13, the second end of the third rod 32 is pivotally connected with the rear end of the seat frame 11, the third end of the third rod 32 is connected with the first end of the second linear drive 31, the second end of the second linear drive 31 is pivotally connected with the second end of the first rod 22, and the length of the second linear drive 31 is adjustable to adjust the height of the seat frame 11.

[0079] It can be understood that, as shown in FIG. 2, when the second linear driving member 31 is elongated, since the first end of the second linear driving member 31 is connected with the third end of the third rod 32, and the second end of the second linear driving member 31 is pivotally connected with the second end of the first rod 22, the second end of the second linear driving member 31 can drive the upper end of the first rod 22 to be lifted upward, and accordingly, the front end of the seat frame 11 can be synchronously lifted. At the same time, when the second linear driving member 31 is elongated, the third rod 32 can also be driven to rotate in the vertical plane about the first end of the third rod 32, so that the second end of the third rod 32 can be moved upward, and accordingly, the rear end of the seat frame 11 can be synchronously lifted.

[0080] The seat frame of the embodiment of the present application can integrally raise or lower the height of the seat frame 11 by arranging the second rotating device 3, and since the second linear driving member 31 can simultaneously drive the first rod 22 and the third rod to rotate, the height adjustment of the seat frame 11 can be completed without driving the first adjuster to rotate, thereby being beneficial to improve the transmission efficiency of the height adjustment of the seat frame 11, and the transmission is more stable, and the user has a better experience.

[0081] Optionally, as shown in FIG. 2, the first rotating device 2 is two groups, and the two groups of first rotating devices 2 are arranged on the left and right sides of the base 13 respectively. The second rotating device 3 is two groups, and the two groups of second rotating devices 3 are arranged on the left and right sides of the base 13 respectively. The seat frame of the embodiment of the present application is provided with two groups of first rotating devices 2 and second rotating devices 3, which can improve the stability of the seat frame in the forward inclination angle adjustment and the height adjustment, and on the other hand, can improve the structural strength of the seat frame, improve the carrying capacity of the seat frame, and prolong the service life of the seat frame.

[0082] In an example, as shown in FIG. 2, the two first adjuster bodies 211 of the two groups of first rotating devices 2 are connected through the spline shaft 26. It can be understood that the spline shaft 26 is respectively arranged in the two first adjuster bodies 211 along the left-right direction and is in transmission connection with the two first adjuster bodies 211, and the angle adjusting motor 24 is in transmission connection with the spline shaft 26, so that the two first adjusters 21 can be simultaneously controlled to rotate by one angle adjusting motor 24, thereby improving the synchronism of the forward inclination angle adjustment of the seat frame 11.

[0083] In some embodiments, as shown in FIG. 2, the seat frame 11 comprises a seat frame body 111 and a first intermediate rod 112, the first intermediate rod 112 is arranged in the seat frame body 111 along the left-right direction of the base 13, and the first ends of the two groups of first rods 22 and the second ends of the two groups of second linear driving members 31 are pivotally connected to the first intermediate rod 112. It can be understood that the first intermediate rod 112 can connect the first rods 22 of the two groups of first rotating devices 2 to ensure the synchronization of the lifting of the two groups of first rotating devices 2, which is beneficial to reduce the fluctuation feeling generated when adjusting the angle of the front end of the seat frame 11, and since the first intermediate rod 112 is arranged in the seat frame body 111 along the left-right direction of the base 13, the structural strength of the seat frame 11 can be improved, and the carrying capacity of the seat frame 11 can be improved.

[0084] Further, as shown in FIG. 2, the seat frame 11 comprises a second intermediate rod 113, both ends of the second intermediate rod 113 are pivotally connected to the third ends of the two groups of third rods 32, and the first ends of the two groups of second linear driving members 31 are connected to the second intermediate rod 113. It can be understood that the second intermediate rod 113 can connect the third rods 32 of the two groups of second rotating devices 3 to ensure the synchronization of the lifting of the two groups of second rotating devices 3, which is beneficial to reduce the fluctuation feeling generated when adjusting the angle of the rear end of the seat frame 11, and since the second intermediate rod 113 is arranged in the seat frame body 111 along the left-right direction of the base 13, the structural strength of the seat frame 11 can be improved, and the carrying capacity of the seat frame 11 can be improved.

[0085] In some embodiments, as shown in FIGS. 2-5, the framework body 1 further comprises a backrest 12 and a second angle adjuster 4, the second angle adjuster 4 comprises a second angle adjuster body 411, a third support 42 and a fourth support 43, and the third support 42 and the fourth support 43 are connected to the second angle adjuster body 411. It should be noted that the third support 42 is connected to the rotating part of the second angle adjuster body 411, and the fourth support 43 is connected to the fixed part of the second angle adjuster body 411. Thus, when the second adjuster body 41 rotates, the included angle between the third support 42 and the fourth support 43 can be changed.

[0086] The third support 42 is connected to the seat frame 11, the fourth support 43 is connected to the backrest 12, the second angle adjuster body 411 is used to adjust the included angle between the third support 42 and the fourth support 43, and the passive reset device further comprises a second trigger 55, a third fixing member 523 and a fourth fixing member 524, the third fixing member 523 and the fourth fixing member 524 are arranged at intervals and are arranged through the third support 42 and the seat frame 11, and the second trigger 55 is connected to the third fixing member 523. When the second trigger 55 works, it can drive the third fixing member 523 to separate from the third support 42 and the seat frame 11, so that the backrest 12 rotates forward around the axis of the fourth fixing member 524.

[0087] According to the seat framework of the embodiment of the present application, when the vehicle is about to be collided, the controller can receive a pre-collision signal, and can control the reset motor 61 to start, and the reset motor 61 drives the second angle adjuster body 411 to rotate, so that the backrest 12 rotates forward around the axis of the second angle adjuster body 411, thereby resetting the backrest 12, and making the passenger return to the best posture to meet the collision. In addition, after the vehicle is collided, the second point explosion device 55 works, so that the third fixing member 523 is separated from the third support 42 and the seat frame 11, at this time, the third support 42 and the seat frame 11 are connected through the fourth fixing member 524, under the inertia force of the passenger and the traction of the safety belt on the seat framework, the backrest 12 can rotate forward around the axis of the fourth fixing member 524, so as to reset the backrest 12.

[0088] As shown in FIG. 4, the seat framework further comprises an active reset device 6, the active reset device 6 comprises a reset motor 61 and a controller, the controller and the second angle adjuster body 411 are connected with the reset motor 61, when the controller receives a pre-collision signal, the reset motor 61 can drive the second angle adjuster body 411 to rotate, so that the backrest 12 rotates forward around the axis of the second angle adjuster body 411.

[0089] Therefore, the seat framework of the embodiment of the present application can reset the backrest 12 through the active reset device 6 and the passive reset device, so as to meet the safety protection of the passenger in the zero-gravity posture during driving, and the reliability is high.

[0090] On the other hand, the number of parts required by the passive reset device of the seat framework of the embodiment of the present application is less, and the passive reset work of the backrest 12 can be completed through the second point explosion device 55, the third fixing member 523 and the fourth fixing member 524, and the structure design is simple, easy to process and manufacture, and the cost is low.

[0091] It can be understood that a sensor (not shown) is arranged on the vehicle, and the sensor is used to detect whether the vehicle is collided, and can give a pre-warning for the collision. In other words, the sensor can perceive whether the driving scene outside the vehicle is dangerous. When the system judges that the vehicle is about to be collided, a pre-collision signal can be transmitted to the controller, so that the reset motor 61 can be quickly rotated by the controller, and since the second angle adjuster body 411 is connected with the backrest 12 through the fourth support 43, the second angle adjuster body 411 can drive the backrest 12 to reset rapidly through the fourth support 43, so as to make the passenger return to the best posture to meet the collision.

[0092] It should be noted that when the system judges that the active reset device 6 can achieve the safety expectation, the passive reset device can not be started. Conversely, when the system judges that the active reset device 6 cannot achieve the safety expectation, the passive reset device needs to be started.

[0093] Specifically, after the vehicle is in a collision, the second trigger 55 is triggered. When the second trigger 55 is triggered, the third fixing member 523 can drive the third support 42 and the seat frame 11 to separate from the seat frame 11, so that the third support 42 and the seat frame 11 are connected only through the fourth fixing member 524. Under the traction of the seat belt on the seat frame and the inertial force of the occupant, the occupant can drive the backrest 12 to rotate forward, and at this time, the second angle adjuster 4 and the backrest 12 rotate forward around the axis of the fourth fixing member 524 to reset the backrest 12, so that the occupant can return to the best posture to meet the collision.

[0094] As shown in FIG. 4, the reset motor 61 can normally adjust the angle of the second angle adjuster 4 in a scenario where the vehicle is not in danger. For example, when the system senses that the driving scene outside the vehicle is dangerous, combines the state of the occupant in the vehicle and the state of the vehicle, judges the severity through the safety calculation module, and makes an active reset signal, the backrest 12 can be driven to quickly recover 20 degrees within 700 ms, so that the occupant returns to the best posture to meet the collision.

[0095] Optionally, as shown in FIGS. 4, 8 and 9, the third support 42 is provided with a second sliding groove 412 extending along a second arc line, the center of the second arc line is located on the axis of the fourth fixing member 524, the third fixing member 523 is arranged in the second sliding groove 412 and the third support 42, and the third fixing member 523 is arranged adjacent to the bottom of the second sliding groove 412. The passive reset device further comprises a second guide member 532 arranged in the second sliding groove 412 and the third support 42, and the second guide member 532 is arranged adjacent to the top of the second sliding groove 412. It can be understood that when the backrest 12 is passively reset, the second guide member 532 is fixed, and the second sliding groove 412 can slide along the second arc line relative to the second guide member 532. The second guide member 532 can guide and limit the movement of the third support 42 to improve the reliability of the passive reset of the backrest 12.

[0096] In addition, the present application can constrain the extension length of the second sliding groove 412 to constrain the end point of the passive reset of the backrest 12, in other words, when the backrest 12 is passively reset to a set position, the third support 42 can be stopped from continuing to rotate by the second guide member 532, so that the occupant can return to the best collision posture.

[0097] Optionally, as shown in FIGS. 8 and 9, the width dimension of the second sliding groove 412 gradually decreases from the top of the second sliding groove 412 to the bottom of the second sliding groove 412, and the outer diameter of the second guide member 532 is smaller than the width dimension of the bottom of the second sliding groove 412.

[0098] It is to be noted that the distance between the two side walls of the second sliding groove 412 perpendicular to the extending direction of the second sliding groove 412, i.e. the side wall adjacent to the fourth fixing member 524 and the side wall away from the fourth fixing member 524, is the width dimension of the second sliding groove 412.

[0099] In other words, the width direction of the second sliding groove 412, the extending direction of the second sliding groove 412 and the thickness of the third bracket 42 are orthogonal to each other.

[0100] As shown in FIG. 8 and FIG. 9, the width dimension of the second sliding groove 412 along the upward direction gradually decreases, so that the third bracket 42 can rotate forward with damping when the second sliding groove 412 slides relative to the second guide member 532. In other words, when the second sliding groove 412 slides relative to the second guide member 532, the side walls of the second sliding groove 412 will interfere with the second guide member 532 due to the gradually narrowing width of the second sliding groove 412, so that the energy when the backrest 12 is passively reset can be absorbed to achieve energy absorption and better protect the occupant safety.

[0101] Optionally, as shown in FIG. 9, the passive resetting device further comprises a second energy absorption sheet 542, the second energy absorption sheet 542 is sleeved on the second guide member 532 and connected with the third bracket 42, the second energy absorption sheet 542 can be broken and absorbed to hinder the forward rotation of the backrest 12 around the axis of the fourth fixing member 524. For example, the second energy absorption sheet 542 can be welded or integrally formed on the third bracket 42, and the second guide member 532 is arranged through the second energy absorption sheet 542, when the second sliding groove 412 slides relative to the second guide member 532, the second energy absorption sheet 542 can be broken and deformed due to the impact force of the backrest 12 and the seat belt, so as to achieve energy absorption and better protect the occupant safety.

[0102] In an example, the second energy absorption sheet 542 comprises an outer ring portion, an inner ring portion and an energy absorption portion (not shown), the outer ring portion is arranged outside the inner ring portion, and the outer ring portion and the inner ring portion are connected by one or more energy absorption portions, the outer ring portion is welded or integrally formed on the third bracket 42, and the inner ring portion is sleeved on the second guide member 532. When the second sliding groove 412 slides relative to the second guide member 532, the energy absorption portion can be broken and deformed with the outer ring portion or the inner ring portion due to the impact force of the backrest 12 and the seat belt, so as to achieve energy absorption.

[0103] Another embodiment of the seat of the present application comprises a seat framework and a seat belt. The seat framework is the seat framework of the present application, and the seat belt is arranged on the seat framework. The technical advantages of the seat of the embodiment of the present application are the same as those of the seat framework described above, and will not be repeated here.

[0104] When the vehicle is braked urgently or collides, the occupant can drive the backrest 12 to move forward through the seat belt. For example, the seat belt is a pre-tightening seat belt.

[0105] Further, the seat further comprises air bags, the air bags comprising a side air bag and a seat cushion air bag 7, the side air bag being arranged on one side of the backrest 12 along the left-right direction of the backrest 12, and the seat cushion air bag 7 being arranged on the upper side of the seat frame 11.

[0106] The vehicle of another embodiment of the present application comprises the seat frame or the seat of the embodiments of the present application. The technical advantages of the vehicle of the embodiments of the present application are the same as those of the seat frame or the seat of the above-mentioned embodiments, which will not be described herein again.

[0107] The seat frame, the seat and the vehicle according to the embodiments of the present application will be described below with reference to Figs. 8 to 15.

[0108] As shown in Figs. 10 to 14, the seat frame of the embodiments of the present application comprises a frame body 1, a third rotating device 8 and a passive reset device, the frame body 1 comprising a seat frame 11 and a base 13, the base 13 being arranged on the lower side of the seat frame 11, the third rotating device 8 comprising a first linear drive 81, a first rod 22 and a second rod 23, the first end of the first rod 22 being pivotally connected with the front end of the seat frame 11, the second end of the first rod 22 being pivotally connected with the first end of the second rod 23, the second end of the second rod 23 being pivotally connected with the front end of the base 13, the third end of the second rod 23 being pivotally connected with the first end of the first linear drive 81, the first linear drive 81 being arranged on the base 13 and being used to drive the first rod 22 and the second rod 23 to rotate, the passive reset device comprising a third trigger 41, the third trigger 41 being connected with the second rod 23, when the third trigger 41 works, the second rod 23 is movable relative to the first end of the first linear drive 81, so that the second rod 23 rotates downward around the second end of the second rod 23.

[0109] According to the seat frame of the embodiments of the present application, the first linear drive 81 can drive the second rod 23 to rotate around the second end of the second rod 23, the second rod 23 can drive the first rod 22 to rotate, so as to complete the angle adjustment of the front end of the seat frame 11. Since the third trigger 41 is connected with the second rod 23, when the third trigger 41 works, the second rod 23 is movable relative to the first end of the first linear drive 81, that is, the second rod 23 is unlocked with the first linear drive 81, under the action of the gravity and the inertial force of the occupant, the second rod 23 can rotate downward around the second end of the second rod 23, so as to drive the first rod 22 and the front end of the seat frame 11 to move downward, thereby reducing the elevation angle of the front end of the seat frame 11. Therefore, the seat frame of the embodiments of the present application integrates the third trigger 41 on the second rod 23, which has the advantages of simple structure design, less space occupation of the seat frame and high integration degree.

[0110] It can be understood that the first linear drive 81 can be a linear screw motor, or a linear air cylinder or a linear oil cylinder, which is not limited in the present application.

[0111] When the first linear driving member 81 is lengthened, the first linear driving member 81 can drive the second rod 23 to rotate downward around the second end of the second rod 23, thereby driving the first rod 22 to move downward, and correspondingly, the front end of the seat frame 11 can be driven to rotate downward to lower the elevation angle of the seat frame 11. Similarly, when the first linear driving member 81 is shortened, the first linear driving member 81 can drive the second rod 23 to rotate upward around the second end of the second rod 23, thereby driving the first rod 22 to move upward, and correspondingly, the front end of the seat frame 11 can be driven to rotate upward to raise the elevation angle of the seat frame 11.

[0112] For example, as shown in FIGS. 12 and 14, the arrangement points of the first end of the second rod 23, the second end of the second rod 23, and the third end of the second rod 23 are generally triangular in shape. This makes the linkage mechanism formed by the first rod 22, the second rod 23, the seat frame 11, and the base 13 operate more smoothly.

[0113] In some embodiments, as shown in FIGS. 3 to 5, the second rod 23 is provided with a third sliding groove 2331 extending in the front-rear direction of the seat frame 11, the third rotating device 8 includes a first pivot 25 connected with the first end of the first linear driving member 81 and rotatingly penetrating the front end of the third sliding groove 2331, and the passive reset device includes a fifth fixed member 421 penetrating the third sliding groove 2331 and stopping at the rear side of the first pivot 25. When the third detonator 41 is working, the fifth fixed member 421 can be separated from the third sliding groove 2331, so that the second rod 23 can move relative to the first pivot 25 along the extension direction of the third sliding groove 2331.

[0114] As shown in FIG. 14, it can be understood that when the third detonator 41 is not working, the fifth fixed member 421 can prevent the third sliding groove 2331 from moving relative to the first pivot 25 because it penetrates the third sliding groove 2331 and stops at the rear side of the first pivot 25, so as to ensure that the first linear driving member 81 can normally drive the second rod 23 to rotate. When the third detonator 41 is working, the fifth fixed member 421 is separated from the third sliding groove 2331, and under the action of the gravity and inertial force of the occupant, the second rod 23 can move relative to the first pivot 25 along the extension direction of the third sliding groove 2331 because the first pivot 25 is not hindered by the fifth fixed member 421. In other words, when the third detonator 41 is working, the first linear driving member 81 remains stationary, and the second rod 23 can rotate toward the front under the guidance of the third sliding groove 2331, thereby driving the first rod 22 to descend, so as to lower the height of the front end of the seat frame 11.

[0115] The seat frame of the embodiment of the present application can constrain the moving track of the second rod 23 through the first pivot 25 and the third sliding groove 2331, so as to improve the reliability of the reset of the seat frame 11. In addition, the present application can constrain the end point of the passive reset of the seat frame 11 by constraining the extension length of the third sliding groove 2331, in other words, when the seat frame 11 is passively reset to the set position, the first pivot 25 can stop the second rod 23 from continuing to rotate, thereby ensuring that the occupant returns to the optimal collision posture.

[0116] It should be noted that the third sliding groove 2331 can extend horizontally backward or obliquely backward. The present application does not specifically limit the inclination angle and the extension length of the third sliding groove 2331, which can be designed according to the actual type of the seat.

[0117] Optionally, as shown in FIG. 14, the width dimension of the third sliding groove 2331 gradually decreases in the direction from the front end of the third sliding groove 2331 to the rear end of the third sliding groove 2331, and the outer diameter of the first pivot 25 is smaller than the width dimension of the rear end of the third sliding groove 2331.

[0118] It should be noted that the width direction of the third sliding groove 2331, the extension direction of the third sliding groove 2331 and the thickness direction of the second rod 23 are orthogonal to each other. In other words, as shown in FIG. 5, the width dimension of the third sliding groove 2331, i.e. the spacing dimension of the third sliding groove 2331 in the general upward and downward direction.

[0119] When the third sliding groove 2331 slides relative to the first pivot 25, the second rod 23 can rotate downward with damping. In other words, when the third sliding groove 2331 slides relative to the first pivot 25, the side wall of the third sliding groove 2331 will interfere with the first pivot 25 due to the gradual narrowing of the width of the third sliding groove 2331, thereby absorbing the energy when the seat frame 11 is passively reset, so as to achieve the energy absorption effect and better protect the safety of the occupant.

[0120] Optionally, as shown in FIG. 14, the passive reset device further comprises a third energy-absorbing sheet 431, the third energy-absorbing sheet 431 is sleeved on the first pivot 25 and connected with the second rod 23, and the third energy-absorbing sheet 431 can be broken and absorb energy to hinder the movement of the second rod 23 relative to the first pivot 25. For example, the third energy-absorbing sheet 431 can be welded or integrally formed on the second rod 23, and the first pivot 25 is arranged in the third energy-absorbing sheet 431. When the third sliding groove 2331 slides relative to the first pivot 25, the third energy-absorbing sheet 431 can be broken and deformed due to the downward impact force of the occupant, thereby achieving the energy absorption effect and better protecting the safety of the occupant.

[0121] For example, the third energy-absorbing sheet 431 includes a first outer ring portion, a first inner ring portion, and a first energy-absorbing portion (not shown), the first outer ring portion is arranged outside the first inner ring portion, the first outer ring portion is connected with the first inner ring portion through one or more first energy-absorbing portions, the first outer ring portion is welded or integrally formed on the second rod 23, the first inner ring portion is sleeved on the first pivot 25, and the first energy-absorbing portion is used for being broken and deformed to absorb energy when the second rod 23 moves relative to the first pivot 25. In other words, when the third sliding groove 2331 slips relative to the first pivot 25, the first energy-absorbing portion can be broken and deformed due to the impact force of the seat frame 11 relative to the first outer ring portion or the first inner ring portion, so as to achieve the energy-absorbing effect.

[0122] In an example, the fifth fixing member 421 can also directly abut against the first pivot 25, that is, there is no gap between the fifth fixing member 421 and the first pivot 25, so as to ensure the reliability of the fifth fixing member 421 for stopping the first pivot 25, that is, to prevent the first pivot 25 from moving relative to the third sliding groove 2331 when the third point explosion device 41 is in a non-working state, thereby avoiding the problem of failure of the passive reset device.

[0123] In other examples, part of the third energy-absorbing sheet 431 abuts between the first pivot 25 and the fifth fixing member 421. It can be understood that the fifth fixing member 421 can prevent the first pivot 25 from moving relative to the third sliding groove 2331 through the third energy-absorbing sheet 431, so as to prevent the first pivot 25 from moving relative to the third sliding groove 2331 when the third point explosion device 41 is in a non-working state, thereby avoiding the problem of failure of the passive reset device.

[0124] Optionally, as shown in FIGS. 13 and 14, the second rod 23 includes a first connecting segment 231, a second connecting segment 232, and a third connecting segment 233, the first connecting segment 231 is arranged on one side of the second connecting segment 232 adjacent to the first rod 22 along the left-right direction of the seat frame 11, the third connecting segment 233 is arranged on the other side of the second connecting segment 232 away from the first rod 22 along the left-right direction of the seat frame 11, the first connecting segment 231 is pivotally connected with the base 13 and the first rod 22, the third sliding groove 2331 is arranged on the third connecting segment 233, the third point explosion device 41 is connected with the third connecting segment 233, and the third point explosion device 41 is arranged on the side of the third connecting segment 233 away from the second connecting segment 232. The seat framework of the embodiment of the present application can avoid the problem of interference between the third point explosion device 41, the first rod 22, and the second rod 23 when the third rotating device 8 rotates by arranging the second rod 23 in the above structure, and by optimizing the second rod 23, the size of the second rod 23 along the front-back direction of the seat frame 11 can be reduced, the structural strength of the second rod 23 can be improved, and the seat framework is more compact and has a better space arrangement structure.

[0125] For example, as shown in FIGS. 13 and 14, the connection structure of the first connection segment 231, the second connection segment 232 and the third connection segment 233 is generally in the shape of a Z letter, the first connection segment 231 and the second connection segment 232 are generally parallel, the second connection segment 232 is arranged between the first connection segment 231 and the second connection segment 232, and has a certain included angle with the first connection segment 231 and the third connection segment 233.

[0126] In some embodiments, as shown in FIGS. 10 and 13, the seat framework further comprises a second rotating device 3, the second rotating device 3 comprising a second linear driving member 31 and a third rod 32. For example, the second linear driving member 31 can be a linear screw motor, or a linear cylinder or a linear oil cylinder. The first end of the third rod 32 is pivotally connected to the rear end of the base 13, the second end of the third rod 32 is pivotally connected to the rear end of the seat frame 11, the third end of the third rod 32 is connected to the first end of the second linear driving member 31, and the second end of the second linear driving member 31 is pivotally connected to the second end of the first rod 22. The length of the second linear driving member 31 is adjustable to adjust the height of the seat frame 11.

[0127] It can be understood that when the second linear driving member 31 is elongated, the second end of the second linear driving member 31 can drive the upper end of the first rod 22 to lift upward, and correspondingly, the front end of the seat frame 11 can be lifted synchronously, because the first end of the second linear driving member 31 is connected to the third end of the third rod 32, and the second end of the second linear driving member 31 is pivotally connected to the second end of the first rod 22. At the same time, the second linear driving member 31 can also drive the third rod 32 to rotate in the vertical plane about the first end of the third rod 32, so that the second end of the third rod 32 moves upward, and correspondingly, the rear end of the seat frame 11 can be lifted synchronously.

[0128] The seat framework of the embodiments of the present application can overall raise or lower the height of the seat frame 11 by arranging the second rotating device 3, and the second linear driving member 31 can drive the first rod 22 and the third rod 32 to rotate at the same time, so that the height adjustment of the seat frame 11 can be completed without driving the first linear driving member 81 to move, thereby facilitating to improve the transmission efficiency of the height adjustment of the seat frame 11, and the transmission is more stable, and the user has a better experience.

[0129] Optionally, as shown in FIGS. 10 and 13, the third rotating device 8 is two groups, and the two groups of third rotating devices 8 are arranged on the left and right sides of the base 13. The second rotating device 3 is also two groups, and the two groups of second rotating devices 3 are arranged on the left and right sides of the base 13. The seat framework of the embodiments of the present application is provided with two groups of third rotating devices 8 and second rotating devices 3, which can improve the stability of the forward inclination angle adjustment and the height adjustment of the seat framework, and can improve the structural strength of the seat framework, improve the carrying capacity of the seat framework, and prolong the service life of the seat framework.

[0130] Specifically, as shown in FIG. 10 and FIG. 13, the seat frame 11 comprises a seat frame body 111 and a first intermediate rod 112, the first intermediate rod 112 is arranged in the left-right direction of the base 13 through the seat frame body 111, and the first ends of the two groups of first rods 22 and the second ends of the two groups of second linear driving members 31 are pivoted to the first intermediate rod 112. It can be understood that the first intermediate rod 112 can connect the first rods 22 of the two groups of third rotating devices 8, so as to ensure the synchronization of the lifting of the two groups of third rotating devices 8, which is beneficial to reduce the fluctuation feeling generated when the front end of the seat frame 11 is adjusted in angle, and since the first intermediate rod 112 is arranged in the left-right direction of the base 13 through the seat frame body 111, the structural strength of the seat frame 11 can be improved, and the carrying capacity of the seat frame 11 can be improved.

[0131] Further, as shown in FIG. 10 and FIG. 13, the seat frame 11 comprises a seat frame body 111 and a second intermediate rod 113, both ends of the second intermediate rod 113 are pivoted to the third ends of the two groups of third rods 32, and the first ends of the two groups of second linear driving members 31 are connected to the second intermediate rod 113. It can be understood that the second intermediate rod 113 can connect the third rods 32 of the two groups of second rotating devices 3, so as to ensure the synchronization of the lifting of the two groups of second rotating devices 3, which is beneficial to reduce the fluctuation feeling generated when the rear end of the seat frame 11 is adjusted in angle, and since the second intermediate rod 113 is arranged in the left-right direction of the base 13 through the seat frame body 111, the structural strength of the seat frame 11 can be improved, and the carrying capacity of the seat frame 11 can be improved.

[0132] In some embodiments, as shown in FIG. 10 and FIG. 15, the framework body 1 further comprises a backrest 12 and a second angle adjuster 4, the second angle adjuster 4 comprises a second angle adjuster body 411, a third support 42 and a fourth support 43, the third support 42 and the fourth support 43 are connected to the second angle adjuster body 411, the third support 42 is connected to the seat frame 11, the fourth support 43 is connected to the backrest 12, and the second angle adjuster body 411 is used to adjust the included angle between the third support 42 and the fourth support 43.

[0133] As shown in FIG. 8, the passive reset device further comprises a second detonator 55, a sixth fixing member 422 and a fourth fixing member 524, the sixth fixing member 422 and the fourth fixing member 524 are arranged at intervals and are arranged through the third support 42 and the seat frame 11, and the second detonator 55 is connected to the sixth fixing member 422. When the second detonator 55 works, it can drive the sixth fixing member 422 to separate from the third support 42 and the seat frame 11, so as to make the backrest 12 rotate forward around the axis of the fourth fixing member 524.

[0134] According to the seat framework of the embodiment of the present application, when the vehicle is about to be collided, the controller can receive a pre-collision signal, and can control the reset motor 61 to start, and the reset motor 61 drives the second angle adjuster body 411 to rotate, so that the backrest 12 rotates forward around the axis of the second angle adjuster body 411, thereby resetting the backrest 12, and making the passenger return to the best posture to meet the collision. In addition, after the vehicle is collided, the second point explosion device 55 works, so that the sixth fixing part 422 is separated from the third support 42 and the seat frame 11, at this time, the third support 42 and the seat frame 11 are connected through the fourth fixing part 524, under the inertia force of the passenger and the traction of the safety belt on the seat framework, the backrest 12 can rotate forward around the axis of the fourth fixing part 524, so as to reset the backrest 12.

[0135] As shown in FIG. 10, the seat framework further comprises an active reset device 6, the active reset device 6 comprises a reset motor 61 and a controller, the controller and the second angle adjuster body 411 are connected with the reset motor 61, when the controller receives a pre-collision signal, the reset motor 61 can drive the second angle adjuster body 411 to rotate, so that the backrest 12 rotates forward around the axis of the second angle adjuster body 411.

[0136] Therefore, the seat framework of the embodiment of the present application can reset the backrest 12 through the active reset device 6 and the passive reset device, so as to meet the safety protection of the passenger in the zero-gravity posture during driving, and the reliability is high.

[0137] On the other hand, the number of parts required by the passive reset device of the seat framework of the embodiment of the present application is less, and the passive reset work of the backrest 12 can be completed only through the second point explosion device 55, the sixth fixing part 422 and the fourth fixing part 524, and the structure design is simple, easy to process and manufacture, and the cost is low.

[0138] It can be understood that a sensor (not shown) is arranged on the vehicle, and the sensor is used to detect whether the vehicle is collided, and can give a pre-warning for the collision. In other words, the sensor can perceive whether the driving scene outside the vehicle is dangerous. When the system judges that the vehicle is about to be collided, a pre-collision signal can be transmitted to the controller, so that the reset motor 61 can be quickly rotated by the controller, and since the second angle adjuster body 411 is connected with the backrest 12 through the fourth support 43, the second angle adjuster body 411 can drive the backrest 12 to reset rapidly through the fourth support 43, so as to make the passenger return to the best posture to meet the collision.

[0139] It should be noted that when the system judges that the active reset device 6 can achieve the safety expectation, the passive reset device can not be started. Conversely, when the system judges that the active reset device 6 cannot achieve the safety expectation, the passive reset device needs to be started.

[0140] Specifically, after the vehicle is in a collision, the second trigger 55 is triggered. When the second trigger 55 is triggered, the sixth fixing member 422 can drive the third support 42 and the seat frame 11 to separate, so that the third support 42 and the seat frame 11 are connected only through the fourth fixing member 524. Under the traction of the seat belt on the seat frame and the inertial force of the occupant, the occupant can drive the backrest 12 to rotate forward. At this time, the second angle adjuster 4 and the backrest 12 rotate forward around the axis of the fourth fixing member 524 to reset the backrest 12, so that the occupant can return to the best posture to meet the collision.

[0141] As shown in FIG. 10, the reset motor 61 can normally adjust the angle of the second angle adjuster 4 in a scenario where the vehicle is not in danger. For example, when the system senses that the driving scene outside the vehicle is dangerous, in combination with the state of the occupant in the vehicle and the state of the vehicle, the severity is judged by the safety calculation module, and the active reset signal is generated, the backrest 12 can be driven to quickly recover 20 degrees within 700 ms, so that the occupant returns to the best posture to meet the collision.

[0142] Optionally, as shown in FIG. 8 and FIG. 9, the third support 42 is provided with a second sliding groove 412 extending along a second arc line, the center of the second arc line is located on the axis of the fourth fixing member 524, the sixth fixing member 422 is arranged in the second sliding groove 412 and the third support 42, and the sixth fixing member 422 is arranged adjacent to the bottom of the second sliding groove 412. The passive reset device further comprises a second guide member 532 arranged in the second sliding groove 412 and the third support 42, and the second guide member 532 is arranged adjacent to the top of the second sliding groove 412. It can be understood that when the backrest 12 is passively reset, the second guide member 532 is fixed, and the second sliding groove 412 can slide along the second arc line relative to the second guide member 532. The second guide member 532 can guide and limit the movement of the third support 42 to improve the reliability of the passive reset of the backrest 12.

[0143] In addition, the present application can constrain the extension length of the second sliding groove 412 to constrain the end point of the passive reset of the backrest 12. In other words, when the backrest 12 is passively reset to a set position, the third support 42 can be stopped from continuing to rotate by the second guide member 532, so that the occupant can return to the best collision posture.

[0144] Optionally, the width dimension of the second sliding groove 412 gradually decreases from the top of the second sliding groove 412 to the bottom of the second sliding groove 412, and the outer diameter of the second guide member 532 is smaller than the width dimension of the bottom of the second sliding groove 412.

[0145] It should be noted that, as shown in FIG. 9, the distance between the two side walls of the second sliding groove 412 along the extending direction of the second sliding groove 412 (i.e. the side wall adjacent to the fourth fixing member 524 and the side wall away from the fourth fixing member 524) is the width dimension of the second sliding groove 412. In other words, the width direction of the second sliding groove 412, the extending direction of the second sliding groove 412 and the thickness of the third bracket 42 are orthogonal to each other in pairs.

[0146] It can be understood that the width dimension of the second sliding groove 412 along the upward-to-downward direction gradually decreases, so that the third bracket 42 can rotate forward with damping when the second sliding groove 412 slides relative to the second guide member 532. In other words, when the second sliding groove 412 slides relative to the second guide member 532, the side walls of the second sliding groove 412 will interfere with the second guide member 532 due to the gradual narrowing of the width of the second sliding groove 412, so that the energy when the backrest 12 is passively reset can be absorbed to achieve energy absorption and better protect the safety of the occupant.

[0147] Optionally, as shown in FIG. 9, the passive resetting device further comprises a second energy-absorbing sheet 542, the second energy-absorbing sheet 542 is sleeved on the second guide member 532 and connected with the third bracket 42, and the second energy-absorbing sheet 542 can be broken and energy-absorbed to hinder the forward rotation of the backrest 12 around the axis of the fourth fixing member 524.

[0148] For example, the second energy-absorbing sheet 542 can be welded or integrally formed on the third bracket 42, and the second guide member 532 is arranged through the second energy-absorbing sheet 542. When the second sliding groove 412 slides relative to the second guide member 532, the second energy-absorbing sheet 542 can be broken and deformed due to the impact force of the backrest 12 and the safety belt, so as to achieve energy absorption and better protect the safety of the occupant.

[0149] In an example, the second energy-absorbing sheet 542 comprises a second outer ring portion, a second inner ring portion and a second energy-absorbing portion (not shown), the second outer ring portion is arranged outside the second inner ring portion, the second outer ring portion is connected with the second inner ring portion through one or more second energy-absorbing portions, the second outer ring portion is welded or integrally formed on the third bracket 42, the second inner ring portion is sleeved on the second guide member 532, and the second energy-absorbing portion is used for breaking and energy-absorbing when the backrest 12 rotates forward around the axis of the fourth fixing member 524. In other words, the second energy-absorbing portion can be broken and deformed due to the impact force of the backrest 12 and the safety belt, so as to achieve energy absorption and better protect the safety of the occupant.

[0150] Another embodiment of the seat of the present application comprises a seat framework and a safety belt. The seat framework is the seat framework of the present application, and the safety belt is arranged on the seat framework. The technical advantages of the seat of the embodiment of the present application are the same as those of the seat framework described above, and will not be repeated here.

[0151] When the vehicle is braked in an emergency or a collision occurs, the occupant can be moved forward by the seat belt with the backrest 12. For example, the seat belt is a pre-tensioning seat belt.

[0152] Further, the seat further includes an airbag, the airbag including a side airbag provided on one side of the backrest 12 in a left-right direction of the backrest 12 and a seat cushion airbag provided on an upper side of the seat frame 11.

[0153] The vehicle of another embodiment of the present application includes the seat frame or the seat of the embodiments of the present application. The vehicle of the embodiments of the present application has the same technical advantages as the seat frame or the seat of the above-described embodiments, and thus a detailed description thereof will not be repeated. In the description of the present application, 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", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely used for the purpose of facilitating the description of the present application and simplifying the description, and thus cannot be construed as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the present application.

[0154] In addition, the terms "first", "second", and the like are used only for the purpose of description, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0155] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing", and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or in communication with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0156] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly contacting the first and second features, or indirectly contacting the first and second features through an intermediate medium. Also, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0157] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material or characteristic is included in at least one embodiment or example of the present application. Illustrative expressions of the above terms in the present specification are not necessarily directed to the same embodiment or example. Also, the described specific features, structures, materials or characteristics can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0158] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary, and are not to be construed as limiting the present application, and any changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A seat framework, wherein, The application relates to a skeleton frame, which comprises: a skeleton body (1) comprising a seat frame (11) and a base (13) arranged at the lower side of the seat frame (11); a first rotating device (2) comprising a first angle adjuster (21) and a first rod (22), the first angle adjuster (21) comprising a first angle adjuster body (211), a first support (212) and a second support (213), the first angle adjuster body (211) being connected with the first support (212) and the second support (213), the first support (212) being connected with the base (13), the second support (213) being pivotally connected with the first end of the first rod (22), the second end of the first rod (22) being pivotally connected with the front end of the seat frame (11), and the first angle adjuster body (211) being used for adjusting the included angle between the first support (212) and the second support (213); a passive reset device comprising a first point exploder (51), the first point exploder (51) being connected with the first support (212), and when the first point exploder (51) works, the first support (212) can drive the first rod (22) to move downward, so as to reduce the elevation angle of the front end of the seat frame (11).

2. The seat frame according to claim 1, wherein, The passive reset device comprises a first fixing member (521) and a second fixing member (522), the base (13) has a connecting frame (131), the first support (212) is connected with the connecting frame (131), the first fixing member (521) and the second fixing member (522) are arranged at intervals and are arranged through the connecting frame (131) and the first support (212), the first point exploder (51) is connected with the second fixing member (522) and the connecting frame (131), and when the first point exploder (51) works, the second fixing member (522) can be driven to separate from the connecting frame (131) and the first support (212), so that the first support (212) rotates downward around the axis of the first fixing member (521).

3. The seat frame of claim 2, wherein, The first support (212) is provided with a first sliding groove (2121) extending along a first arc, the center of the first arc being located on the axis of the first fixing member (521), the second fixing member (522) is arranged through the connecting frame (131) and the first sliding groove (2121), the first fixing member (521) is arranged adjacent to the top of the first sliding groove (2121), and the passive reset device further comprises a first guide member (531) arranged through the connecting frame (131) and the first sliding groove (2121), the first guide member (531) being arranged adjacent to the bottom of the first sliding groove (2121).

4. The seat frame of claim 3, wherein, The width dimension of the first chute (2121) gradually decreases from the bottom of the first chute (2121) to the top of the first chute (2121), and the outer diameter of the first guide (531) is smaller than the width dimension of the top of the first chute (2121); And / or, the passive reset device further comprises a first energy-absorbing sheet (541), the first energy-absorbing sheet (541) is sleeved on the first guide (531) and connected with the first support (212), the first energy-absorbing sheet (541) can be broken and energy-absorbed to hinder the first support (212) from rotating downward around the axis of the first fixing part (521).

5. The seat frame of claim 3, wherein, Further comprising a second rotating device (3), the second rotating device (3) comprises a second linear driving part (31) and a third rod (32), the first end of the third rod (32) is pivoted to the rear end of the base (13), the second end of the third rod (32) is pivoted to the rear end of the seat frame (11), the third end of the third rod (32) is connected with the first end of the second linear driving part (31), the second end of the second linear driving part (31) is pivoted to the second end of the first rod (22), and the length of the second linear driving part (31) is adjustable to adjust the height of the seat frame (11).

6. The seat frame of claim 5, wherein, The first rotating device (2) is two groups, and the two groups of first rotating devices (2) are arranged on the left and right sides of the base (13) respectively, and the second rotating device (3) is also two groups, and the two groups of second rotating devices (3) are arranged on the left and right sides of the base (13) respectively.

7. The seat frame of claim 6, wherein, The seat frame (11) comprises a seat frame body (111) and a first intermediate rod (112), the first intermediate rod (112) is arranged in the seat frame body (111) along the left-right direction of the base (13), and the first ends of the two groups of first rods (22) and the second ends of the two groups of second linear driving parts (31) are pivoted to the first intermediate rod (112); And / or, the seat frame (11) comprises a seat frame body (111) and a second intermediate rod (113), the two ends of the second intermediate rod (113) are pivoted to the third ends of the two groups of third rods (32) respectively, and the first ends of the two groups of second linear driving parts (31) are connected with the second intermediate rod (113).

8. The seat frame of claim 1, wherein, The framework body (1) further comprises a backrest (12) and a second angle adjuster (4), the second angle adjuster (4) comprises a second angle adjuster body (411), a third support (42) and a fourth support (43), the third support (42) and the fourth support (43) are connected with the second angle adjuster body (411), the third support (42) is connected with the seat frame (11), the fourth support (43) is connected with the backrest (12), and the second angle adjuster body (411) is used for adjusting the included angle between the third support (42) and the fourth support (43), The passive reset device further comprises a second point detonator (55), a third fixing member (523) and a fourth fixing member (524), the third fixing member (523) and the fourth fixing member (524) are arranged at intervals and are both provided through the third support (42) and the seat frame (11), the second point detonator (55) is connected with the third fixing member (523), and the second point detonator (55) can drive the third fixing member (523) to separate from the third support (42) and the seat frame (11) when working, so that the backrest (12) rotates forward around the axis of the fourth fixing member (524).

9. The seat frame of claim 8, wherein, Further comprising an active reset device (6), the active reset device (6) comprises a reset motor (61) and a controller, the controller and the second angle adjuster body (411) are both connected with the reset motor (61), and when the controller receives a pre-collision signal, the reset motor (61) can drive the second angle adjuster body (411) to rotate, so that the backrest (12) rotates forward around the axis of the second angle adjuster body (411).

10. The seat frame of claim 8, wherein, The third support (42) is provided with a second sliding groove (412), the second sliding groove (412) extends along a second arc line, the center of the second arc line is located on the axis of the fourth fixing member (524), the third fixing member (523) is provided through the second sliding groove (412) and the third support (42), and the third fixing member (523) is arranged adjacent to the bottom of the second sliding groove (412). The passive reset device further comprises a second guide member (532), the second guide member (532) is provided through the second sliding groove (412) and the third support (42), and the second guide member (532) is arranged adjacent to the top of the second sliding groove (412).

11. The seat frame of claim 10, wherein, In the direction from the top of the second sliding groove (412) to the bottom of the second sliding groove (412), the width dimension of the second sliding groove (412) gradually decreases, and the outer diameter of the second guide member (532) is smaller than the width dimension of the bottom of the second sliding groove (412); And / or, the passive reset device further comprises a second energy-absorbing sheet (542), the second energy-absorbing sheet (542) is sleeved on the second guide member (532) and connected with the third support (42), and the second energy-absorbing sheet (542) can be broken and energy-absorbed to hinder the backrest (12) from rotating forward around the axis of the fourth fixing member (524).

12. A seat, wherein, It comprises: The seat framework is the seat framework in any one of claims 1-11; The safety belt is arranged on the seat framework.

13. A vehicle, wherein, It comprises the seat framework in any one of claims 1-11 or the seat in claim 12.

14. A seat frame, wherein, It comprises: The framework body (1) comprises a seat frame (11) and a base (13), and the base (13) is arranged on the lower side of the seat frame (11); A third rotating device (8) comprises a first linear driving member (81), a first rod (22) and a second rod (23), a first end of the first rod (22) is pivotally connected with a front end of the seat frame (11), a second end of the first rod (22) is pivotally connected with a first end of the second rod (23), a second end of the second rod (23) is pivotally connected with a front end of the base (13), a third end of the second rod (23) is pivotally connected with a first end of the first linear driving member (81), the first linear driving member (81) is arranged on the base (13) and is used for driving the first rod (22) and the second rod (23) to rotate; A passive reset device comprises a first point detonator (41), the first point detonator (41) is connected with the second rod (23), when the first point detonator (41) works, the second rod (23) is movable relative to the first end of the first linear driving member (81), so that the second rod (23) rotates downward around the second end of the second rod (23).

15. The seat frame of claim 14, wherein, A third sliding groove (2331) is arranged on the second rod (23), the third sliding groove (2331) extends along the front-to-rear direction of the seat frame (11), the third rotating device (8) comprises a first pivot shaft (25), the first pivot shaft (25) is connected with the first end of the first linear driving member (81) and rotates through the front end of the third sliding groove (2331); The passive reset device comprises a fifth fixed member (421), the fifth fixed member (421) penetrates through the third sliding groove (2331) and is stopped at the rear side of the first pivot shaft (25), when the first point detonator (41) works, the fifth fixed member (421) can be separated from the third sliding groove (2331), so that the second rod (23) moves relative to the first pivot shaft (25) along the extension direction of the third sliding groove (2331).

16. The seat frame of claim 15, wherein, In the direction from the front end of the third sliding groove (2331) to the rear end of the third sliding groove (2331), the width dimension of the third sliding groove (2331) gradually decreases, and the outer diameter of the first pivot shaft (25) is smaller than the width dimension of the rear end of the third sliding groove (2331).

17. The seat frame of claim 15, wherein, The passive reset device further comprises a third energy-absorbing sheet (431), the third energy-absorbing sheet (431) comprises a first outer ring portion, a first inner ring portion and a first energy-absorbing portion, the first outer ring portion is arranged on the outer side of the first inner ring portion, the first outer ring portion is connected with the first inner ring portion through the first energy-absorbing portion, the first outer ring portion is connected on the second rod (23), the first inner ring portion is sleeved on the first pivot shaft (25), and the first energy-absorbing portion is used for energy absorption by being broken when the second rod (23) moves relative to the first pivot shaft (25).

18. The seat frame of claim 15, wherein, The second rod (23) comprises a first connecting section (231), a second connecting section (232) and a third connecting section (233), the first connecting section (231) is arranged on one side of the second connecting section (232) adjacent to the first rod (22) along the left-right direction of the seat frame (11), the third connecting section (233) is arranged on the side of the second connecting section (232) away from the first rod (22) along the left-right direction of the seat frame (11), the first connecting section (231) is pivotally connected with the base (13) and the first rod (22), the third sliding groove (2331) is arranged on the third connecting section (233), the first point detonator (41) is connected with the third connecting section (233), and the first point detonator (41) is arranged on the side of the third connecting section (233) away from the second connecting section (232).

19. The seat frame of claim 14, wherein, The framework body (1) further comprises a backrest (12) and a second angle adjuster (4), the second angle adjuster (4) comprises a second angle adjuster body (411), a third support (42) and a fourth support (43), the third support (42) and the fourth support (43) are both connected with the second angle adjuster body (411), the third support (42) is connected with the seat frame (11), the fourth support (43) is connected with the backrest (12), the second angle adjuster body (411) is used for adjusting the included angle between the third support (42) and the fourth support (43), The passive reset device further comprises a second point detonator (55), a sixth fixed part (422) and a fourth fixed part (524), the sixth fixed part (422) and the fourth fixed part (524) are arranged at intervals and both pass through the third support (42) and the seat frame (11), the second point detonator (55) is connected with the sixth fixed part (422), and the second point detonator (55) can drive the sixth fixed part (422) to separate from the third support (42) and the seat frame (11) when working, so that the backrest (12) rotates forward around the axis of the fourth fixed part (524).

20. The seat frame of claim 19, wherein, The third support (42) is provided with a second sliding groove (412), the second sliding groove (412) extends along a second arc, the center of the second arc is located on the axis of the fourth fixed part (524), the sixth fixed part (422) passes through the second sliding groove (412) and the third support (42), and the sixth fixed part (422) is arranged adjacent to the bottom of the second sliding groove (412), the passive reset device further comprises a second guide part (532), the second guide part (532) passes through the second sliding groove (412) and the third support (42), and the second guide part (532) is arranged adjacent to the top of the second sliding groove (412).

21. The seat frame of claim 20, wherein, The width dimension of the second chute (412) gradually decreases from the top of the second chute (412) to the bottom of the second chute (412), and the outer diameter of the second guide (532) is smaller than the width dimension of the bottom of the second chute (412); And / or, the passive reset device further comprises a second energy-absorbing sheet (432), the second energy-absorbing sheet (432) comprises a second outer ring portion, a second inner ring portion and a second energy-absorbing portion, the second outer ring portion is arranged outside the second inner ring portion, the second outer ring portion is connected with the second inner ring portion through the second energy-absorbing portion, the second outer ring portion is connected on the third support (42), the second inner ring portion is sleeved on the second guide (532), and the second energy-absorbing portion is used for energy absorption when the backrest (12) rotates forward around the axis of the fourth fixed part (524).

22. The seat frame of any of claims 14-21, wherein, Further comprising a second rotating device (3), the second rotating device (3) comprises a second linear driving part (31) and a third rod (32), a first end of the third rod (32) is pivoted with a rear end of the base (13), a second end of the third rod (32) is pivoted with a rear end of the seat frame (11), a third end of the third rod (32) is pivoted with a first end of the second linear driving part (31), a second end of the second linear driving part (31) is pivoted with a first end of the first rod (22), and the length of the second linear driving part (31) is adjustable to adjust the height of the seat frame (11).

23. The seat frame of claim 22, wherein, The third rotating device (8) is two groups, and the two groups of third rotating devices (8) are arranged on the left and right sides of the base (13), respectively, and the second rotating device (3) is also two groups, and the two groups of second rotating devices (3) are arranged on the left and right sides of the base (13), respectively.

24. The seat frame of claim 23, wherein, The seat frame (11) comprises a seat frame body (111) and a first intermediate rod (112), the first intermediate rod (112) is arranged in the seat frame body (111) along the left-right direction of the base (13), and the first ends of the two groups of first rods (22) and the second ends of the two groups of second linear driving parts (31) are pivoted with the first intermediate rod (112); And / or, the seat frame (11) comprises a seat frame body (111) and a second intermediate rod (113), both ends of the second intermediate rod (113) are pivoted with the third ends of the two groups of third rods (32), respectively, and the first ends of the two groups of second linear driving parts (31) are connected with the second intermediate rod (113).

25. A seat, wherein, The seat frame according to any one of claims 14-24.

26. A vehicle, wherein, The seat according to claim 25.

Images